The main aim of this blog post is simple: to give you the most valuable information available to help you choose the best winter socks for cold-weather pursuits. We reviewed socks for all budgets, seasons, and travel styles, and highlighted our top picks for 2026-2027. We also assembled a sock comparison table with the most important characteristics, pros, and cons of each of the 20 contenders on our list to give you a quick overview of the essentials.
Most of our favorites are made with merino wool and a combination of synthetic fibers, most often nylon, polyester, acrylic, and spandex/elastane/Lycra. There’s also one model with the more exotic alpaca wool. Materials, designs and constructions, thickness, cushioning, and prices are essential elements in choosing socks and performance outdoor apparel. Hence, we tried to explain everything you need to know about socks and their features, characteristics, and properties.
For those interested in hiking footwear, we recommend visiting our ‘Footwear for Backpacking‘ section where curious readers will find a bunch of articles about hiking shoes, boots, and other gear that is perfect for backpacking adventures. Whether you’re a seasoned hiker or just starting out, our articles will help you find the right footwear for your next trip and provide tips on how to care for and maintain your gear to keep it in great condition.
Table of Contents
Quick answer: BEST WINTER & COLD WEATHER SOCKS FOR 2026-2027
1. Smartwool Hike Full Cushion Crew View on Amazon View on REI
2. Carhartt Arctic Heavyweight Merino Boot View on Amazon View on Backcountry
3. Darn Tough Hiker Boot Full Cushion View on Amazon View on REI
4. Darn Tough Mountaineering OTC Heavyweight View on Amazon View on REI
5. Smartwool Ski Targeted Cushion OTC View on Amazon View on Backcountry
6. Sealskinz Worstead Waterproof Cold Weather View on Amazon
7. Alvada Merino Wool Hiking Socks View on Amazon
8. Darn Tough OTC Heavyweight Tactical View on Amazon
9. Darn Tough Boot Heavyweight Hunting View on Amazon View on Backcountry
10. Smartwool Hike Classic Edition Liner Crew View on Amazon View on Backcountry
11. Polar Extreme Thermal Socks View on Amazon
12. REI Co-op Merino Wool Expedition Hiking View on REI
13. Smartwool Hike Classic Edition Extra Cushion View on Amazon View on REI
14. Fox River Trailhead Heavyweight Crew View on Fox River
15. Danish Endurance Merino Wool Hiking View on Amazon
16. Minus33 Merino Heavyweight Mountaineering View on Amazon View on Minus33
17. Bridgedale Explorer Heavyweight Merino Boot View on Amazon View on REI
18. J.B. Field’s Icelandic -40 Below Arctic Trail View on Amazon
19. RealTree Heavyweight Merino Wool Tall Boot View on Amazon
20. Juclise Alpaca Wool Heavyweight Thermal Boot View on Amazon
Best overall winter socks
#1 Smartwool Hike Full Cushion Crew
Height: Crew
Category: Midweight
Price: $$ (around $27)
Materials: 62% Merino wool, 36% nylon, 2% elastane (men’s); 61% Merino wool, 37% nylon, 2% elastane (women’s)
Notable features:
- Full cushioning on the entire sock protects the foot and gives extra warmth for a more comfortable experience
- Improved body-mapped mesh zones for added breathability
- Virtually seamless toe design prevents irritation and discomfort
Pros:
- Thick without added bulk; insulate well and feel warm in any conditions
- Functional and versatile – they are designed to perform equally well on mountainous and flat terrain (more details in our review)
- Soft, cushioned, and breathable, making them a comfortable choice for long hikes
- Great craftsmanship and sturdy construction built for enduring harsh conditions
Cons:
- The wool blend is a bit slow to dry
- Limited color options with a lack of vibrant choices
Best for: Long hikes in winter and cold weather
Women’s Version: Available -> Amazon | REI | Backcountry
Find the latest price:
Amazon | REI | Backcountry
Best sock for extreme cold
#2 Carhartt Arctic Heavyweight Merino Boot Sock
Height: Boot height (sits mid-calf)
Category: Heavyweight
Price: $$$ (usually around $30.99)
Materials: 50% merino wool, 22% acrylic, 14% virgin wool, 12% nylon, 1% elastane, 1% polyester
Notable features:
- FastDry technology is sweat-wicking (providing better thermal regulation) and odor-fighting
- Reinforced heel and toe with abrasion-resistant yarns for increased durability
- Ribbed cuff channels and mesh instep for enhanced ventilation on the leg
Pros:
- Built for harsh conditions (extreme cold); that’s why they can be a bit thick and bulky for regular boots
- With thick padding in key areas such as the heel, arch, toe, instep, and leg, these socks help absorb shock and reduce fatigue, allowing you to hike further and longer with ease
- Great for any indoor or outdoor activity – walking, fishing, hunting, work, or just being outdoors in the cold – whether you’re tackling a challenging mountain trail or just taking a leisurely walk, these socks are a great choice for anyone looking for extra support and comfort on the trail
- A good-quality sock that’s comfortable and super warm, recommended for anyone looking for a good quality and domestically made sock that’s made to last (plus it’s made in the USA with premium materials)
Cons:
- Quite thick especially in the ankle and calf areas – keep this in mind when buying
- They require special care to stay in great condition, so we recommend air drying them instead of using a dryer, as heat can cause the socks to shrink, altering the fit and reducing overall quality
Best for: Sub-zero temperatures
Women’s Version: Not Available
Find the latest price:
Best all-around winter sock
#3 Darn Tough Hiker Boot Full Cushion Midweight
Height: Boot height
Category: Midweight
Price: $$$ (around $30)
Materials: 66% Merino wool, 32% nylon, 2% Lycra (men’s); 69% merino wool, 27% nylon, 4% Lycra (women’s)
Notable features:
- Performance fit: knitting techniques for the finest fitting performance without slipping, bunching, or blisters
- Full cushioning
- Virtually seamless toe: undetectable seam fusion for an ultra-smooth, invisible feel
Pros:
- Excellent hiking socks with soft and supportive full cushion throughout the entire sock for supreme comfort
- Tough and comfortable: can be worn year-round for just about everything from day hikes and backpacking to casual winter commutes and even light snow sports
- Great performance in line with Darn Tough’s reputation as one of the leading manufacturers of hard-wearing and functional socks
- Very warm – these cold-weather hiking socks are what you need for your winter adventures (yet many people wear them year-round)
Cons:
- A bit pricey, though the premier quality is worth it
- Run small; can shrink further after washing
- Not the super-thick, heavyweight socks some may fancy
Best for: Cold weather hiking and extreme pursuits in the backcountry
Women’s Version: Available -> Amazon | REI | Backcountry
Find the latest price:
Amazon | REI | Backcountry
Best mountaineering sock
#4 Darn Tough Mountaineering Over-the-Calf Heavyweight
Height: Over the calf
Category: Heavyweight
Price: $$$ (the usual price is $35)
Materials: 73% Merino wool, 25% nylon, 2% Lycra spandex (men’s); 72% Merino wool, 26% nylon, 2% Lycra spandex (women’s)
Notable features:
- All-weather performance + custom fit without slipping and bunching: fast-wicking, fast-drying
- Extra cushioning
- High-density knitting for unprecedented durability and comfort
Pros:
- Top-quality winter and cold weather socks for hiking, backpacking, and mountaineering expeditions, as well as a range of sports and activities
- Heavy-padded, these mountaineering socks offer superior protection and cushioning for even the toughest mountain climbing expeditions, so we deem them an essential piece of gear for anyone looking to tackle the mountains in comfort and style
- Very comfortable and very warm (though not hot), they thrive in harsh environments and cold weather conditions to keep your feet comfortable and protected during even the longest and most demanding climbs
- Designed to withstand the rigors of mountain climbing and other demanding outdoor activities; however, in the unlikely event that something does go wrong, you can still rely on the lifetime warranty offered by Darn Tough to have it fixed
Cons:
- The hefty price tag may seem like a lot, but with these socks, there is a big payoff with regard to quality, comfort, and durability
- A little tight for those who are not used to wearing socks like this
- Apparently, the manufacturer’s focus has been on simplicity and functionality instead of style, so these socks are available in only one color for the men’s version and another for the women’s
Best for: Mountaineering and backpacking in cold temperatures
Women’s Version: Available -> Amazon | REI | Backcountry
Find the latest price:
Best sock for winter sports
#5 Smartwool Ski Targeted Cushion OTC
Height: Over the calf
Category: Midweight
Price: $$$ (the usual price is $32)
Materials: 57% Merino wool, 40% nylon, 3% elastane (men’s); 57% Merino wool, 40% nylon, 3% elastane (women’s)
Notable features:
- Targeted cushion for protection and mesh ventilation zones for optimum moisture management and maximum breathability
- 4 Degree Elite Fit System: performance-oriented fit with flex zone at the ankle joint
- Indestructawool technology features a patent-pending construction method for exceptional durability and comfort
Pros:
- Well-made, high-performance socks for cold outdoor days designed to keep your feet warm and protected, so you can focus on your activities without worrying about cold and uncomfortable feet
- Excellent craftsmanship, high-quality fabric that breathes well, feels very comfortable, and advanced construction techniques delivering top-notch performance
- Provide enough padding for support and comfort during skiing, snowshoeing, and other snow sports (if you need even more padding, take a look at the Ski Full Cushion OTC)
- Stay in place and don’t slip down (thanks to their snug and supportive fit) ensuring that you can ski, snowboard, or hike with confidence and comfort
Cons:
- Some may find them a bit too tight around the calves, but the snug fit is essential for keeping snow and cold air from entering the boots
- Targeted cushion offers slightly less warmth than the full cushion version, which may be a factor for those who run cold or ski in extreme conditions
Best for: Skiing and snowboarding
Women’s Version: Available -> Amazon | Backcountry
Find the latest price:
Amazon | OpticsPlanet | Backcountry
Best waterproof socks for cold weather
#6 Sealskinz Worstead Waterproof Cold Weather Knee Socks
Height: Knee-length
Category: Heavyweight
Price: $$$$ (around $74)
Materials: Inner Layer: 35% Merino wool, 35% acrylic, 23% polyester, 3.5% nylon, 3.5% elastane; Middle Layer: Aquasealz hydrophilic membrane; Outer Layer: 90% Nylon, 10% elastane
Notable features:
- Waterproof breathable membrane with Hydrostatic Head of >20,000mm
- Durable nylon blend exterior with 4-way stretch
- Extra layer of terry-loop knitting for added warmth
Pros:
- Fully waterproof thanks to the Aquasealz 100% hydrophilic membrane placed between the inner and outer layers
- Really thick, heavy-duty knee-high socks designed for colder temperatures and wet weather; suitable for a wide range of activities such as hiking, hunting, fishing, and kayaking
- Premium materials ensure high-quality construction that works as intended and does not leak
- Flat seams along the toes for blister prevention
Cons:
- Cleaning can be laborious, especially after getting muddy; slow to dry
- Though you’ll never need to re-waterproof, these kinds of socks require special care
- Very expensive – they cost top dollar
Best for: Wet weather outdoor adventures
Women’s Version: Unisex
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Best budget socks for cold weather
#7 Alvada Merino Wool Hiking Socks
Height: Crew
Category: Midweight
Price: $ (the usual price is $19.99 for 3 pairs)
Materials: 80% Merino wool, 15% polyester, 4% nylon, 1% elastane
Notable features:
- Cushioning throughout the entire sole
- Mesh ventilation channels
- Brushed inside for a soft and smooth feel
Pros:
- Affordable with a good price-to-quality ratio, these budget socks offer excellent value for money, providing adequate warmth and comfort for outdoor activities in cold weather
- Soft material, warm and comfy, no-itch feel (they work well across a wide temperature range, still midweight, so they’re better at lower temperatures)
- High merino wool content makes them warm in cold environments and cool in warm conditions (wool should be washed at low temperatures to avoid shrinkage)
- Wash and dry nicely – these budget cold-weather hiking socks are also easy to care for, making them a convenient option for those who prefer to keep their gear in good condition
Cons:
- Not among the most durable options for heavy use – toe and heel areas may wear out quickly, especially with frequent use, which could reduce the overall life of the socks
- Cold water wash and air dry only; to get the most life out of these socks, you must follow the care instructions precisely
Best for: Casual winter wear and light outdoor activities
Women’s Version: Unisex
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Best tactical cold weather socks
#8 Darn Tough Over-the-Calf Heavyweight Tactical Full Cushion
Height: Over the calf
Category: Heavyweight
Price: $$$ (the usual price is around $36)
Materials: 79% Merino wool, 20% nylon, 1% Lycra spandex
Notable features:
- Military-grade merino wool fiber (US domestic wool sourcing)
- Performance fit
- US Air Force Safe to Fly certified (this verifies the socks are safe for use in combat and aviation environments)
Pros:
- These heavyweight military socks are specially designed to provide both warmth and comfort during cold weather conditions, making them an ideal choice for soldiers, law enforcement officers, hikers, and anyone who spends time outdoors in the colder months
- The additional padding ensures better protection for the feet from impact and pressure and reduces the risk of blisters and other foot injuries
- Made from tough, high-quality materials that are designed to withstand the rigors of military and tactical activities
- Insulate and retain heat effectively, keeping feet warm and comfortable even in the harshest conditions
Cons:
- If they are too loose or do not fit well over your calf, they might slide down the leg, causing friction and rubbing
- Pricey, but if you have the money, they’re worth buying because of their overall quality, warmth, and comfort
Best for: Rugged and challenging environments
Women’s Version: Unisex
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Best cold weather socks for hunting
#9 Darn Tough Boot Heavyweight Hunting Socks
Height: Boot height
Category: Heavyweight
Price: $$$ (the usual price is around $32)
Materials: 75% Merino wool, 23% nylon, 2% Lycra spandex (men’s); 75% Merino wool, 23% nylon, 2% Lycra spandex (women’s)
Notable features:
- Thick and with extra cushioning (that runs the length of the sock) without being too bulky
- Extra merino wool for warmth, breathability, and comfort
- Reinforced footbeds for unprecedented durability and happy feet
Pros:
- High-quality hunting socks that provide durability, warmth, and comfort, with excellent insulation and moisture-wicking capabilities, ensuring that your feet stay warm and dry even in the toughest conditions
- The well-padded and supportive design of these cold-weather socks provides cushioning and support for the feet, reducing the risk of foot fatigue and blisters – perfect for anyone who spends a lot of time outdoors in the cold
- Fit snugly, stay put, and don’t bunch up, allowing you to move around freely while ensuring maximum comfort and performance
- These are the best socks for hunting but can be used for an array of cold-weather activities such as hiking, skiing, or work; they’re also offered in an OTC height
Cons:
- The narrow, somewhat restrictive fit can create a squeezing sensation that some find uncomfortable
- Socks with predominantly wool content like these need to be air dried, and once wet, they take longer to dry
Best for: Hunting in cold weather and other outdoor winter activities
Women’s Version: Available -> Amazon | Sportsman’s | Backcountry
Find the latest price:
Amazon | Sportsman’s | Backcountry
Best liner socks for winter
#10 Smartwool Hike Classic Edition Liner Crew Socks
Height: Crew
Category: Lightweight
Price: $ (around $17)
Materials: 59% Merino wool, 30% recycled nylon, 8% nylon, 2% elastane, 1% polyester
Notable features:
- Elasticized arch brace for a secure fit to reduce the chances of slipping, bunching, and blisters
- Features recycled nylon
- Virtually seamless toe for additional comfort and an ultra-smooth, invisible feel
Pros:
- Do what a sock liner is expected to do – effectively keep the wearer’s feet dry to avoid the formation of hot spots and blisters
- Comfortable, no-itch feel without rubbing: like most Smartwool sock designs, these liners provide the comfort and quality necessary for a successful and enjoyable hiking experience free from unnecessary discomfort or irritation
- Add thickness and warmth as needed, and pair well with other more substantial socks, allowing hikers to layer their socks for added comfort and protection in colder temperatures
- Versatile and lightweight; can be used as a liner or as a standalone option, making them ideal for a range of activities, from work to play; available in a convenient 3-pack (around $16 per pair), they’re a great way to ensure you always have a clean pair on hand for your next hiking adventure
Cons:
- Designed to fit snugly against the skin, which may be uncomfortable for some hikers – we recommend trying on a few different sizes to find the right fit for your unique needs and preferences
- Lacks some elasticity, so you need to get the right size for your feet
- Thin and not particularly durable
Best for: Moisture management and layering in cold weather
Women’s Version: Unisex
Find the latest price:
Amazon | Sportsman’s | Backcountry
Best non-wool winter socks
#11 Polar Extreme Thermal Socks
Height: Crew
Category: Heavyweight
Price: $ (the usual price is $21.98 for 2 pairs)
Materials: 95% Acrylic, 4% elastane, 1% other fibers
Notable features:
- Yarns with good thermal properties for high-performance insulation and heat retention
- Soft acrylic blend; can maintain sock shape
- Brushed inner lining
Pros:
- Good overall price-to-quality ratio – not the best materials or construction, but better than most models sold at this price
- Warm and comfortable for general cold weather wear (though definitely not for extreme cold); they can also be worn year-round
- They look and feel good, thanks partly to the smooth and soft lining on the inner side for added coziness (heavily brushed fleece lining)
- They have decent features: offer good cushioning, come in various colors and patterns, are machine washable, and feature reinforced heels and toes for added durability
Cons:
- Extremely bulky, which means that you’d need a between half and a full size larger boots to accommodate them
- Questionable durability – these socks wear out quite fast, especially in the heel area
- Limited size range; they are sold in a “one size fits most” (men’s 6-12)
Best for: Those with cold feet even when it’s not that cold outside
Women’s Version: Unisex
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Best value single-pair upgrade
#12 REI Co-op Merino Wool Expedition Hiking Crew
Height: Crew
Category: Heavyweight
Price: $$ (usual price: $22.95)
Materials: 79% Merino wool, 20% nylon, 1% Lycra spandex
Notable features:
- Heavy cushioning with reinforcement at heels, toes, footbeds, and Achilles
- Seamless toes prevent chafing
- Stretch arch bands provide effective support
Pros:
- With its heavy cushioning and high wool content, this sock is built for colder conditions
- High merino wool content without the heavy price tag; excellent moisture-wicking abilities and natural odor control thanks to the high percentage of wool
- Warmth and long-lasting comfort that’s both itch-free and protected against microbes due to the merino wool and seamless toes
- Stay up and retain stretch with low permanent deformation; instead of using a drier, air dry them if you want to keep them functioning as they should for longer
Cons:
- Not as indestructible as a Darn Tough – decent quality, though not among the most durable socks for colder weather
- Overall good fit, but it may be loose for some (especially around the calf area)
- Excellent cold-weather sock, but it could be too warm for high-intensity activities in milder temperatures
Best for: Cold-weather hiking and backpacking
Women’s Version: Unisex
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Best of the rest
#13 Smartwool Hike Classic Edition Extra Cushion Crew
Height: Crew
Category: Heavyweight
Price: $$ (the usual price is $25)
Materials: 70% Merino wool, 29% nylon, 1% elastane
Notable features:
- Extra cushioning absorbs impact for a more comfortable experience
- Elasticized arch brace holds the sock in place and ensures the sock doesn’t slip down the leg when on the trail or anywhere else you go
- Virtually seamless toe for added comfort
Pros:
- Excellent warmth as these thick socks insulate very well, making them a top choice for cold-weather hiking and winter activities
- Super-cushy – the dense cushioning absorbs shock and provides a very comfortable experience
- Superior moisture management ensures feet stay dry even after all-day hikes
- Effective odor resistance thanks to the natural properties of merino wool
Cons:
- A bit bulky, but considering the intended use of these socks, it’s not that surprising
- Great at insulating feet from the cold, but the high wool content may cause these to stretch too much
Best for: Winter and cold weather activities
Women’s Version: Unisex
Find the latest price:
Amazon | REI | Backcountry
#14 Fox River Trailhead Heavyweight Crew
Height: Crew
Category: Heavyweight
Price: $$ (usually around $22)
Materials: 77% Wool, 22% stretch nylon, 1% spandex
Notable features:
- Fully thermalined construction for added shock absorption and insulation
- Spandex compression arch adds support and ensures shape retention
- Reinforced toe and heel
Pros:
- Excellent value – this is a very good mid-range option that delivers premium performance
- This thick woolen construction is not only warm but also very comfortable without restricting circulation
- Reliable, with heavy cushioning that works great for long days on and off the trail
- Versatile – can be used not only for hiking but also for any kind of winter activities including work
Cons:
- Thick wool lacks the softness of fine merino, making it feel more scratchy
- Despite the reinforcements, the material on the heels wears out relatively fast, which is typical for a model with high wool content
Best for: Extended cold-weather activities
Women’s Version: Unisex
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#15 Danish Endurance Merino Wool Hiking Socks
Height: Crew
Category: Midweight
Price: $ (available in 3-packs and 5-packs – typically $8-$11 per pair)
Materials: 38% Merino wool, 30% acrylic, 30% polyamide (nylon), 2% elastane
Notable features:
- Targeted ventilation zones and temperature-regulating technology keep feet fresh, dry, and warm in cool conditions
- Thick cushioning to protect feet from hotspots and blisters
- Anti-Hole Guarantee: free replacement within one year of purchase if holes develop
Pros:
- Warm, sturdy, and comfortable socks made from a blend of merino wool, nylon, and polypropylene to keep your feet warm and dry in less-than-ideal conditions (they’re also very effective in warmer climates, as the fabric helps keep the feet cool in such conditions)
- Good fit and cushioning do a wonderful job of preventing blisters during long hikes and walks
- Great price-to-quality ratio and rich colors – the Danish Endurance Merino Wool Hiking socks offer a fantastic experience at roughly 60% of the price of other popular brands and models; they can be bought as a 3-pack or 5-pack at a reasonable price
- OEKO-TEX certified materials guarantee the socks are made from textiles free from harmful chemicals and substances
Cons:
- The merino wool content is just 38%, which isn’t ideal for cold-weather socks
- The top of the sock is too tight (it’s also very thin)
Best for: Hiking and backpacking in cool-to-cold temperatures
Women’s Version: Unisex
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#16 Minus33 Merino Heavyweight Mountaineering OTC
Height: Over the calf
Category: Heavyweight
Price: $$ (the usual price is $25.99)
Materials: 80% Merino wool, 10% nylon, 9% stretch nylon, 1% spandex
Notable features:
- Warm high-density merino cushioning throughout the sock for all-day performance
- Reinforced footbed for better wear and tear resistance
- Seamless toe box reduces bulk and eliminates blister-generating friction
Pros:
- Extra insulation for cold weather: great for keeping your feet warm during winter activities such as work, hiking, running, skiing, and snowboarding
- Constructed with high-quality materials – soft merino and sturdy nylon blend
- Great feeling thanks to the quality materials and heavy cushioning placed wherever needed most, without making them look too bulky
- Offer a good snug fit, stay up, and do not slip down
Cons:
- May not be thick and warm enough for extreme winter mountaineering
- Fit snugly, but may be too tight for some
Best for: Versatile cold-weather activities and winter sports
Women’s Version: Unisex
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#17 Bridgedale Explorer Heavyweight Merino Performance Boot
Height: Boot height
Category: Heavyweight
Price: $$$$ (the usual price is $38.99)
Materials: 28% Merino wool, 19% new wool, 34% nylon / polyamide, 18% Endurofil / polypropylene, 1% LYCRA / elastane
Notable features:
- High-density cushion from top to toe for all-day performance
- Close and supportive Performance Fit (contoured knit) to prevent slipping down or bunching
- Engineered advanced zonal padding system for support and comfort
Pros:
- Premium, expedition-grade sock for serious mountaineers, winter expeditionists, and anyone facing prolonged, extreme cold; engineered for use in extreme cold environments; also available in OTC height
- Thick, with heavy full-density cushioning throughout that insulates well and provides extra warmth and comfort while moving or sitting in extreme cold
- Advanced technical construction: zonal padding system, performance fit (provides support exactly where it’s needed), great moisture-wicking properties
- Outstanding durability and longevity due to the solid, sturdy construction
Cons:
- Made from slightly tougher yarns; to avoid discomfort, pair with a liner sock
- Works great for sub-zero temperatures but isn’t as well-suited for warmer weather
Best for: Long or multi-day high mountain and winter expeditions
Women’s Version: Available
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#18 J.B. Field’s Icelandic 40 Below Arctic Trail Wool Thermal Sock
Height: Crew
Category: Heavyweight
Price: $$ (around $42 for 2 pairs)
Materials: 85% PreShrunk wool, 15% nylon
Notable features:
- Strategically reinforced zones
- Full terry cushion insulates from the cold, protects, and cushions
- High wool content for better regulation of body temperature, blisters prevention, and odor control
Pros:
- Very thick, soft, and warm – suitable for harsh winters and snow; maybe the warmest socks you’ve ever worn
- Do their job without making sacrifices on comfort
- High wool content ensures excellent moisture management, odor-resistance, hypo-allergenic properties, and insulation
- Stay rugged without losing their shape and thickness
Cons:
- Very bulky and heavy – they are so thick that you may need to get a size or two bigger boot to accommodate your feet, so consider shoe fit prior to purchase
- Not very comfortable on bare skin; they’re much better when worn with a pair of liner socks underneath
Best for: Extreme cold temperatures
Women’s Version: Unisex
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#19 RealTree Heavyweight Merino Wool Tall Boot Socks
Height: Over the calf
Category: Heavyweight
Price: $ (the usual price is $14.99)
Materials: 80% Merino wool, 17% nylon, 3% spandex
Notable features:
- Ultra-soft merino wool wicks moisture away
- Heavyweight with full cushion foot and leg
- Reinforced heel and toe
Pros:
- Good, budget-friendly option (offered at a better-than-average price) for cold weather activities: hiking, backpacking, and hunting
- High-quality materials and construction: solid, sturdy construction that can withstand the demands of winter outdoor pursuits
- Warm and comfortable; effective moisture-wicking for dry, warm, and comfortable feet; cushioning in the right spots ensures a comfortable, blister-free experience
- Good odor resistance and thermoregulation (do not retain odors)
Cons:
- Slim fit – not for those who don’t like wearing tight-fitting socks
- Not as thick as you’d expect them to be
Best for: Extended wear during all-season outdoor activities
Women’s Version: Unisex
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#20 Juclise Alpaca Wool Heavyweight Thermal Boot Socks
Height: Boot height
Category: Heavyweight
Price: $$ (around $45.98 for 2 pairs)
Materials: 62% Baby alpaca yarn, 26% PROTAC nylon, 9% RWS Australian merino wool, 3% Lycra spandex
Notable features:
- Superfine baby alpaca yarn; fully lined with terry loops from toe to sock opening for cloud-like softness
- Fitted toe box and heel; flexible arch band and Lycra spandex for a comfortable, non-binding fit
- Reinforced thick toe (ThermoToe Shield) area adds insulation
Pros:
- High percentage content of alpaca wool (baby alpaca wool is even finer) – a soft and silky natural fiber similar to but warmer than sheep’s wool
- Well-made with high-quality materials; they are perfect for outdoor pursuits on sub-zero days as well as casual wear
- Soft, non-itchy, reliably warm, and comfortable – those with cold feet will be happy to wear these socks at night
- Good stretch and fit without being too tight or uncomfortable
Cons:
- Tend to wear out quickly – you won’t be able to use a pair of these for multiple seasons
- To avoid shrinking, washing requires care (washing in cool or cold water and air-drying is recommended)
Best for: Casual and everyday winter wear
Women’s Version: Unisex
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Table 1: Best socks for winter and cold – comparison table
| PRODUCT | DESCRIPTION | PROS | CONS |
|---|---|---|---|
 Smartwool Hike Full Cushion Crew | #1 Best overall sock for winter and cold weather
|
|
|
 Carhartt Arctic Heavyweight Merino Boot | #2 Best sock for extreme cold
|
|
|
 Darn Tough Hiker Boot Full Cushion | #3 Best all-around winter sock
|
|
|
 Darn Tough Mountaineering OTC Heavyweight | #4 Best mountaineering sock
|
|
|
 Smartwool Ski Targeted Cushion OTC | #5 Best sock for winter sports
|
|
|
 Sealskinz Worstead Waterproof Cold Weather Knee | #6 Best waterproof sock for cold weather
|
|
|
 Alvada Merino Wool Hiking Socks | #7 Best budget sock for cold weather
|
|
|
 Darn Tough OTC Heavyweight Tactical | #8 Best tactical cold weather sock
|
|
|
 Darn Tough Boot Heavyweight Hunting | #9 Best cold weather sock for hunting
|
|
|
 Smartwool Hike Classic Edition Liner Crew | #10 Best liner sock for winter
|
|
|
 Polar Extreme Thermal Socks | #11 Best non-wool winter sock
|
|
|
 REI Co-op Merino Wool Expedition | #12 Best value single-pair upgrade
|
|
|
 Smartwool Hike Classic Edition Extra Cushion | #13
|
|
|
 Fox River Trailhead Heavyweight Crew | #14
|
|
|
 Danish Endurance Merino Wool Hiking | #15
|
|
|
 Minus33 Merino Heavyweight Mountaineering | #16
|
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 Bridgedale Explorer Heavyweight Boot | #17
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 40 Below Arctic Trail Crew | #18
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 RealTree Heavyweight Merino Tall Boot | #19
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 Juclise Alpaca Wool Heavyweight Thermal Boot | #20
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Warm socks for winter and cold weather – buying advice or what to consider
There are some really important factors to consider when choosing the right winter and cold-weather socks for you. Don’t worry, we’ve tried to organize them carefully so that everything sounds logical, and learning it is a no-brainer. We’d like to begin with the key objective factors. Then, we’ll point out the critical subjective factors for choosing winter socks.
Materials
One of the most important factors when choosing a pair of winter socks is the fabric it’s made of. If you remember no more than three rules, try to remember these:
#1 Forget about cotton
Cotton is an excellent fiber that has many different applications, but it is not a good option for winter socks. In a previous post, we compared cotton with polyester and pointed out the differences between these two fibers. Basically, cotton absorbs a lot of moisture, and when wet, it feels cold and clammy. Once wet, cotton takes ages to dry. Moreover, wet cotton loses its insulation abilities and ceases to provide warmth, which might be highly dangerous in cold conditions. Wet cotton also wrinkles easily and softens the skin, which increases the likelihood of the formation of hot spots and blisters. In short, forget about cotton.
#2 Merino wool rocks
A crash course in merino wool:
- Probably the most popular type of sheep’s wool used in the outdoors industry.
- Generally, finer, softer, more comfortable, and retains its shape longer than traditional wool.
- There are different grades of merino wool fineness from 17 to 25 μm – superfine to strong, respectively. The superfine merino has a soft texture similar to cashmere.
- Wicks moisture and transports it to the outer side of the garment so that it can evaporate. This way, the wearer of a merino wool garment might not even feel wet.
- Provides lightweight insulation, allowing body heat retention. Moreover, merino feels warm even when wet.
- Dries relatively fast compared to other popular natural fibers such as cotton.
- Merino is naturally antimicrobial and is much more resistant than most fibers to odor-causing bacteria.
- Has no-itch properties that make it much less likely than traditional wool to irritate the skin.
- Merino wool has many positive characteristics of synthetic fibers that make it suitable for sportswear and activewear.
- Blends well with various man-made materials for increased functionality (durability, moisture management, thermoregulation, elasticity, etc.).
- Merino wool is considered one of the luxury yarns. It’s more expensive than other typical fibers used for making winter and cold weather socks such as traditional wool, cotton, or basic synthetic fibers such as polyester, nylon, acrylic, polypropylene, and elastane.
All these characteristics and properties have made merino wool one of the most sought-after materials for socks, gloves, and garments worn close to the body.
Photo by Susanne Jutzeler
#3 Synthetics are used for improved functionality
While “functionality” often sounds too vague, in the case of winter socks it can be defined easily:
functionality = durability + wear and tear resistance + insulation + moisture management properties + lower weight + elasticity – shrinkage – pilling
Man-made fabrics and materials are quite popular among manufacturers of winter socks because they are modified to meet the specific requirements of the wearer. For example, polyester and nylon are known for their durability and high abrasion resistance. Acrylic is lightweight and has a wool-like feel, whereas polypropylene (olefin) is tough, flexible, and remains dry while transporting moisture (similar to polyester). Spandex (elastane or Lycra) is used because of its exceptional elasticity and good recovery properties. While man-made materials have many positive characteristics, they are not without their drawbacks. Some of these disadvantages include odor retention (polyester, polypropylene), poor elasticity, pilling (nylon, polyester, and polypropylene), low melting point, heat shrinkage, fibrillation (acrylic), poor dimensional stability, or elongation at break, etc.
Note that there are various merino and synthetic blends with different wool-to-synthetic ratios. The manufacturer might have a ton of reasons for manufacturing a particular blend – from lowering the costs to achieving better functionality such as increased durability, insulation, elasticity, etc. So, more merino does not always mean a better quality product. Higher merino wool content, for instance, means a softer and warmer garment but also one that is less durable. Similarly, less merino content does not always mean a poor-quality product.
Cushioning
Winter socks serve a crucial role in keeping our feet warm and comfortable. Their tightly woven design provides ample support, cushioning, and a soft feel against the skin. This is important because, in addition to keeping our feet warm, socks play a role in reducing friction between the foot and the inside of our boots. Typically, high-quality socks have different densities of material at different points for more cushioning, more warmth, or both. These points with added cushioning are often the heels and soles. The density of the fabric within the sock plays a crucial role in protecting the foot. The extra padding also makes the socks warmer and more comfortable while reducing the chances of blister formation.
Thickness and warmth
In most cases, there is a strong connection between overall sock thickness and warmth. For winter, and especially for extreme cold, heavyweight socks almost always provide more warmth than their lighter counterparts. The same applies to cushioning – thick soles are cushier than lightweight versions. Keep in mind, however, that heavy thickness does not always translate into warmer socks though. There are quite a few examples of thick and heavy socks that failed to insulate well when they were expected to do so. It is no coincidence that many experienced outdoorsmen prefer wearing two or three pairs of socks inside their boots. Such combinations (a thin synthetic inner layer underneath a merino blend outer layer is a classic) reduce the incidence of blisters compared to single-layer sock systems.
Sock height
Many people consider this factor not so important, but often wearing the sock with the right height can literally make or break your experience. 
Here are the most popular types of sock heights (the figure to the right comes from Darn Tough and is included for easy reference; keep in mind that sock sizing can vary significantly among manufacturers):
Micro (mini) crew
Not a very good choice for winter, the micro crew is usually preferred for warm weather. Its length is a bit longer than that of ankle or quarter socks, making it less suitable for winter wear. However, there are some excellent socks that work well for mild winter conditions, such as the Smartwool Hike Light Cushion Ankle. Some models, such as the Darn Tough Hiker Micro Crew Cushion are great examples of functionality and comfort. However, this length is quite short for cold weather conditions and we do not recommend it for winter.
Crew
Probably the most common height for socks, the crew also known as “lower calf” (as it ends just below the calf muscle) is a standard height used for year-round socks for universal applications. It’s the optimal height for most environments and conditions, making it a great option for year-round wear. Keep in mind that it may not be so great for high-intensity cold weather activities such as climbing or skiing. Nevertheless, there are some great models suitable not only for casual wear in the cold but also for high-performance pursuits.
Boot height and mid-calf
Boot height socks typically fall somewhere between the lower calf and mid-calf, but closer to mid-calf. Many backpackers prefer socks of this height as they pair well with both hiking shoes and boots. Hunters, backpackers, and professionals from various fields often wear mid-calf socks mainly with boots.
Over the calf+
Over-the-calf and knee-length socks rise to at least just below the knee. This length is common for certain types of sports socks, such as ski (Smartwool Ski Targeted Cushion OTC), football (soccer), endurance running, and mountaineering socks. Compression and elasticity in the leg or at the top of the sock are important for the over-the-calf design because they keep the legs from sagging and slipping down, and they may offer clinical and performance benefits for some people. Darn Tough Mountaineering OTC Heavyweight is a good example of a tough, warm, and comfortable heavy padded sock suited for various sports and activities. Another great example is the winner for best waterproof cold weather socks – the Sealskinz Worstead Waterproof Cold Weather Knee – a fully waterproof, heavy-duty, knee-high sock designed to effectively block out moisture and keep your feet dry in wet conditions.
Price
The prices for good winter socks vary quite a lot – from less than $10 to more than $30 a pair. The main factors behind this disparity include:
- Brand awareness and popularity – Darn Tough, Smartwool, Farm to Feet, and Bridgedale are renowned sock manufacturers, which means many consumers are prepared to pay a premium for their products.
- Features – more technical features usually translate into a higher price.
- Materials and the quality and quantity of insulation used – the use of high-tech fibers such as merino wool, alpaca, and modified polyester fibers (COOLMAX, Thermolite, Hollofil) is more expensive than using other fibers like acrylic, polyester, and nylon.
- Product lifetime and warranties – the longer the useful life of a pair of socks, the higher its price.
While the factors above are more or less objective, some of the most important factors are subjective. Here’s what you need to know about three of them.
Durability
There is a huge difference between sturdy winter socks built to last for ages and flimsy constructions that won’t survive their first use. Manufacturers mainly use synthetic fibers such as polyester and nylon to reinforce their construction. Many popular and not-so-popular companies make socks that hold up fairly well. By this, we mean that good socks can last at least a couple of seasons if properly treated. Nevertheless, Darn Tough is still a mile ahead. Simply put, socks like the Darn Tough Hiker Boot Full Cushion are a symbol of toughness.
Comfort
The perception of comfort is strictly individual. Comfort depends on fit, sock materials, breathability, price – in short, on everything that contributes to the overall experience. No single manufacturer makes the most comfortable socks. Some people prefer Smartwool – like the Smartwool Hike Full Cushion Crew, our top overall pick – while others swear by Darn Tough or Fox River. Sometimes comfort is brand-specific, but more often than not, it isn’t, as there are often differences in the level of comfort among different models and designs made by the same manufacturer.
Photo by Maksim ŠiŠl
Various winter sock warranties
Unfortunately, this isn’t always an objective factor, as different manufacturers have established different warranty policies. For example, Darn Tough offers an unconditional lifetime guarantee for US customers (apparently, the warranty policies for internationals differ). Others, such as Farm to Feet, offer a satisfaction guarantee: if you aren’t completely satisfied with the durability or performance of your socks, you can return them for a replacement pair or a refund (with proof of purchase). Smartwool’s warranty policy is very similar but comes with a 2-year timeframe. Other companies offer more limited policies, such as the standard 30- or 60-day return policy.
Generally, be careful when you see terms like “lifetime guarantee” or “lifetime warranty.” Often, in order to be eligible for a replacement pair or a refund, you must satisfy certain conditions.
Conclusion
The sock market is a highly competitive field filled with great products. When looking for winter and cold-weather socks, seek out pairs that are comfortable, fit well, cushion feet, reduce friction from your footwear, wick moisture effectively, and regulate temperature effectively.
What’s your favorite choice for winter socks and why? Drop us a line in the comments section below. Your feedback is always welcome.
* We classified prices on the following $-$$$$ scale:
- usual price at or below $18 -> $
- usual price between $18.01 and $28 -> $$
- usual price between $28.01 and $38 -> $$$
- usual price above $38 -> $$$$
Related Articles
Top-Rated Liner Socks for Hiking
Smartwool Hike Full Cushion Socks Review
Properties of Cold Weather Clothing
Wool vs Polyester: Which is Better
How to Choose Boots for Hiking
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