Best Thermal Base Layer of 2025

Last updated on 18/10/2025
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Most Relevant
Best Choice
1
Under Armour Men's UA CG Armour Comp Mock, Men's Base Layer with a Polo Neck, Thermal Long Sleeve Top for Winter Running and Skiing with Anti-Odour Technology
Under Armour Men's UA CG Armour Comp Mock, Men's Base Layer with a Polo Neck, Thermal Long Sleeve Top for Winter Running and Skiing with Anti-Odour Technology
Under Armour
24% OffFree Shipping
Why we love it
  • Ultra-warm with added coverage.
  • Strategic ventilation enhances breathability.
  • Sweat-wicking, odour-resistant material.
Main Highlights
  • Ultra-warm – The men's thermal top features a dual-layer fabric with an ultra-warm, brushed interior and a mock neck for added coverage and warmth.
  • Strategic ventilation – With a stretch-mesh back and underarm panels, the compression top gives breathability just in the places you need it.
  • Smooth and stretchy – The thermal base layer for men's 4-way stretch material gives you full freedom of movement throughout the training session.
  • Sweat-wicking – Even in fast-action, stay cool with the ski base layer's sweat-wicking, fast-drying material, which features anti-odour technology.
  • Material and fit – Under Armour Men's UA CG Armour Comp Mock, turtle neck top for men, winter running top, material: 87% polyester/13% elastane.
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9.8
Exceptional
9.8
Exceptional
Under Armour
Under Armour Men's UA CG Armour Comp Mock, Men's Base Layer with a Polo Neck, Thermal Long Sleeve Top for Winter Running and Skiing with Anti-Odour Technology
24% OffFree Shipping
Why we love it
  • Ultra-warm with added coverage.
  • Strategic ventilation enhances breathability.
  • Sweat-wicking, odour-resistant material.
Main Highlights
  • Ultra-warm – The men's thermal top features a dual-layer fabric with an ultra-warm, brushed interior and a mock neck for added coverage and warmth.
  • Strategic ventilation – With a stretch-mesh back and underarm panels, the compression top gives breathability just in the places you need it.
  • Smooth and stretchy – The thermal base layer for men's 4-way stretch material gives you full freedom of movement throughout the training session.
  • Sweat-wicking – Even in fast-action, stay cool with the ski base layer's sweat-wicking, fast-drying material, which features anti-odour technology.
  • Material and fit – Under Armour Men's UA CG Armour Comp Mock, turtle neck top for men, winter running top, material: 87% polyester/13% elastane.
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Value for Money
2
CL convallaria Men's Thermal Underwear Long Johns Set Winter Gift Hunting Gear Sport Base Layer Bottom Top
CL convallaria Men's Thermal Underwear Long Johns Set Winter Gift Hunting Gear Sport Base Layer Bottom Top
CL convallaria
Free Shipping
Why we love it
  • Super warm and windproof.
  • Flexible and elasti.
  • Breathable with quick-dry fabric.
Main Highlights
  • Super warm: Our mens thermal underwear are made of fleece lined fabric with high heat retention and windproof function. The high-density microfibers can lock the heat in your body, keep you warm all day
  • Flexible and elastic: The long johns for men are made of advanced 4 way stretch fabric which is flexible. It can greatly increase your freedom of movement and ensure that you are not tied down in your daily life
  • Breathable and quick dry: These men's base layers have superior moisture-wicking ability. When you sweat it can be well absorbed and quickly evaporated.The excellent air permeability can keep your body dry
  • Comfortbale and soft: The base layer set is midweight and the fabiric is ultra soft that feels great on th skin. The thermal bottoms are fitted with an elastic waistband for added comfort.We also improved the stitch of the pants for a more classic look
  • Ideal for: Our products have many applications; Not only can be worn at home, but also suitable for running, cycling, skiing, hunting, workout, climbing, hiking, etc. It can also be used as a gift for your husband, son, grandfather, and friends
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9.7
Exceptional
9.7
Exceptional
CL convallaria
CL convallaria Men's Thermal Underwear Long Johns Set Winter Gift Hunting Gear Sport Base Layer Bottom Top
Free Shipping
Why we love it
  • Super warm and windproof.
  • Flexible and elasti.
  • Breathable with quick-dry fabric.
Main Highlights
  • Super warm: Our mens thermal underwear are made of fleece lined fabric with high heat retention and windproof function. The high-density microfibers can lock the heat in your body, keep you warm all day
  • Flexible and elastic: The long johns for men are made of advanced 4 way stretch fabric which is flexible. It can greatly increase your freedom of movement and ensure that you are not tied down in your daily life
  • Breathable and quick dry: These men's base layers have superior moisture-wicking ability. When you sweat it can be well absorbed and quickly evaporated.The excellent air permeability can keep your body dry
  • Comfortbale and soft: The base layer set is midweight and the fabiric is ultra soft that feels great on th skin. The thermal bottoms are fitted with an elastic waistband for added comfort.We also improved the stitch of the pants for a more classic look
  • Ideal for: Our products have many applications; Not only can be worn at home, but also suitable for running, cycling, skiing, hunting, workout, climbing, hiking, etc. It can also be used as a gift for your husband, son, grandfather, and friends
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3
Heat Stoke®️ Pack of 2 Men's Thermal Long Johns Trouser Warm Base Layer Black Charcoal White S,M,L,XL,XXL (BLACK, L)
Heat Stoke®️ Pack of 2 Men's Thermal Long Johns Trouser Warm Base Layer Black Charcoal White S,M,L,XL,XXL (BLACK, L)
Heat Stoke
Free Shipping
Why we love it
  • Keeps body heat in winter.
  • High-quality fleece lining.
  • Machine washable convenience.
Main Highlights
  • 👉Having TOG (Thermal Overall Grade) Rating 0.45 to keep the body heat in Winter.
  • 👉Colour: Black-Charcoal-White
  • 👉BRUSHED INSIDE: Brushed inside technology nearly doubled the cold resistance.
  • 👉Long Sleevee then the normal thermal.
  • 👉RIBBED: The ribbed construction shapes like the figure of the body. Long Johns are Open Fly.
  • 👉50% Cotton, 50% Polyester
  • 👉Heat Preservation and Super Warm: Designed with high quality fleece lining, the mens thermal underwear is windproof, keep you warm in cold autumn winter days.
  • 👉Washing instructions: Machine washable at 40°C.
  • 👉Machine Wash
  • 👉Modern Number AB-1219
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9.6
Superb
9.6
Superb
Heat Stoke
Heat Stoke®️ Pack of 2 Men's Thermal Long Johns Trouser Warm Base Layer Black Charcoal White S,M,L,XL,XXL (BLACK, L)
Free Shipping
Why we love it
  • Keeps body heat in winter.
  • High-quality fleece lining.
  • Machine washable convenience.
Main Highlights
  • 👉Having TOG (Thermal Overall Grade) Rating 0.45 to keep the body heat in Winter.
  • 👉Colour: Black-Charcoal-White
  • 👉BRUSHED INSIDE: Brushed inside technology nearly doubled the cold resistance.
  • 👉Long Sleevee then the normal thermal.
  • 👉RIBBED: The ribbed construction shapes like the figure of the body. Long Johns are Open Fly.
  • 👉50% Cotton, 50% Polyester
  • 👉Heat Preservation and Super Warm: Designed with high quality fleece lining, the mens thermal underwear is windproof, keep you warm in cold autumn winter days.
  • 👉Washing instructions: Machine washable at 40°C.
  • 👉Machine Wash
  • 👉Modern Number AB-1219
Show More
4
UNIQUEBELLA Mens Thermal Underwear Set Long Sleeve Tops Long Johns Thermal Base Layer Bottom Fleece Lined Quick Drying, M, Black 1
UNIQUEBELLA Mens Thermal Underwear Set Long Sleeve Tops Long Johns Thermal Base Layer Bottom Fleece Lined Quick Drying, M, Black 1
UNIQUEBELLA
Free Shipping
Why we love it
  • Super warm with fleece lining.
  • Breathability for quick dry.
  • Stretchable and abrasion-resistant.
Main Highlights
  • Heat Preservation and Super Warm: Designed with high quality fleece lining, the mens thermal underwear is windproof, keep you warm in cold autumn winter days.
  • Breathability and Quick Dry: Breathable and moisture wicking fabric is perfect to keep sweat away and dry fast, the thermal base layer men perfectly repel odors and unpleasant smells left behind from sweat and dirt. Machine Washable and Dry washable.
  • Stretchable & Abrasion Resistant: Material Composition is 90% polyester and 10% spandex, flatlock stitching, this thermal wear offers maximum freedom for your body, protecting your muscle trauma during training and sports.
  • Snug Fit: This warm thermal set includes a long Sleeve top and a thermal johns, no shrink, no pile, keep your warm refusing bloated.The reflective logo at the front is useful for joggers who plan to wear in in the dark. The stripes at the side add a nice detail to the top.
  • Multi Occasions: This thermal bottoms for cold weather is idea winter gear for all kinds of activities, such as running, squat, weight training, cycling, yoga, etc. Also can be wear as ski thermals, everyday thermals underwear, pyjamas and base layer.Great birthday gift,holiday present, Christmas gift for your friend or families.
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9.5
Superb
9.5
Superb
UNIQUEBELLA
UNIQUEBELLA Mens Thermal Underwear Set Long Sleeve Tops Long Johns Thermal Base Layer Bottom Fleece Lined Quick Drying, M, Black 1
Free Shipping
Why we love it
  • Super warm with fleece lining.
  • Breathability for quick dry.
  • Stretchable and abrasion-resistant.
Main Highlights
  • Heat Preservation and Super Warm: Designed with high quality fleece lining, the mens thermal underwear is windproof, keep you warm in cold autumn winter days.
  • Breathability and Quick Dry: Breathable and moisture wicking fabric is perfect to keep sweat away and dry fast, the thermal base layer men perfectly repel odors and unpleasant smells left behind from sweat and dirt. Machine Washable and Dry washable.
  • Stretchable & Abrasion Resistant: Material Composition is 90% polyester and 10% spandex, flatlock stitching, this thermal wear offers maximum freedom for your body, protecting your muscle trauma during training and sports.
  • Snug Fit: This warm thermal set includes a long Sleeve top and a thermal johns, no shrink, no pile, keep your warm refusing bloated.The reflective logo at the front is useful for joggers who plan to wear in in the dark. The stripes at the side add a nice detail to the top.
  • Multi Occasions: This thermal bottoms for cold weather is idea winter gear for all kinds of activities, such as running, squat, weight training, cycling, yoga, etc. Also can be wear as ski thermals, everyday thermals underwear, pyjamas and base layer.Great birthday gift,holiday present, Christmas gift for your friend or families.
Show More
5
Under Armour Men's UA HG Armour Comp Mock LS Shirt Black
Under Armour Men's UA HG Armour Comp Mock LS Shirt Black
Under Armour
41% OffFree Shipping
Why we love it
  • Lightweight but durable fabric.
  • Strategic ventilation for comfort.
  • Dries fast, wicks sweat.
Main Highlights
  • Tough, lightweight HeatGear fabric, with all the performance benefits of UA Compression
  • Stretch-mesh back and side panels deliver strategic ventilation
  • Updated ergonomic design keeps seams off high abrasion areas and increases durability
  • Anti-odor technology prevents the growth of odor-causing microbes
  • Material wicks sweat and dries really fast
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9.3
Superb
9.3
Superb
Under Armour
Under Armour Men's UA HG Armour Comp Mock LS Shirt Black
41% OffFree Shipping
Why we love it
  • Lightweight but durable fabric.
  • Strategic ventilation for comfort.
  • Dries fast, wicks sweat.
Main Highlights
  • Tough, lightweight HeatGear fabric, with all the performance benefits of UA Compression
  • Stretch-mesh back and side panels deliver strategic ventilation
  • Updated ergonomic design keeps seams off high abrasion areas and increases durability
  • Anti-odor technology prevents the growth of odor-causing microbes
  • Material wicks sweat and dries really fast
Show More
6
SIMIYA Men's Thermal Underwear Set Base Layer Long Sleeve Top Ultra Soft Long Johns Fleece Thermals Leggings for Winter Workout
SIMIYA Men's Thermal Underwear Set Base Layer Long Sleeve Top Ultra Soft Long Johns Fleece Thermals Leggings for Winter Workout
SIMIYA
32% OffFree Shipping
Why we love it
  • Super warm for winter.
  • Moisture-wicking and breathable fabric.
  • Perfect for indoor wear.
Main Highlights
  • [Windproof & Super Warm for Winter] - ★★★Size guide: Please order 1 size larger than you normally wear.★★★Men's thermal sets made of 95% Polyester & 5% Spandex blend super skin-touch fabric with fleece lined. Long johns for men fit snug like a second skin for minimizing heat loss, lightweight but warm, mens thermal wear gives you a sense of security throughout the winter.
  • [Strong Moisture Wicking] - Mens thermals top and bottoms is made of moisture wicking and breathable fabric, with wool thermal underwear men moisture transport system, wick away sweat fast to keep you dry and light, easily keep away from the clammy feeling. You can relax or brave the outdoors pursuing your active lifestyle at any time.
  • [Outdoor & Indoor Wear] - Mens thermal base layer perfect for use underneath formal or casual attire, or they can be worn as comfy pajamas on chilly nights. When going out to jogger, run, bike, dress up this set under your clothing to keep warm and cozy in cold climates or bad weather.
  • [Flexibility for Any Movement] - The 4-way stretch delivers full mobility and a squat proof design, its strong seams won’t tear prematurely. Long johns men thermal gives you flexibility by hugging your body to move, you’ll feel a sense of freedom in all your activities, they will keep you warm without sacrificing your range of motion or comfort, whether shopping or leisure.
  • [100% Satisfaction Guarantee] - We promise these are the most comfortable thermal underwear for men you will ever own. If you don't love your mens thermals for any reason, let us know and we'll slove this issue soon.
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9.2
Superb
9.2
Superb
SIMIYA
SIMIYA Men's Thermal Underwear Set Base Layer Long Sleeve Top Ultra Soft Long Johns Fleece Thermals Leggings for Winter Workout
32% OffFree Shipping
Why we love it
  • Super warm for winter.
  • Moisture-wicking and breathable fabric.
  • Perfect for indoor wear.
Main Highlights
  • [Windproof & Super Warm for Winter] - ★★★Size guide: Please order 1 size larger than you normally wear.★★★Men's thermal sets made of 95% Polyester & 5% Spandex blend super skin-touch fabric with fleece lined. Long johns for men fit snug like a second skin for minimizing heat loss, lightweight but warm, mens thermal wear gives you a sense of security throughout the winter.
  • [Strong Moisture Wicking] - Mens thermals top and bottoms is made of moisture wicking and breathable fabric, with wool thermal underwear men moisture transport system, wick away sweat fast to keep you dry and light, easily keep away from the clammy feeling. You can relax or brave the outdoors pursuing your active lifestyle at any time.
  • [Outdoor & Indoor Wear] - Mens thermal base layer perfect for use underneath formal or casual attire, or they can be worn as comfy pajamas on chilly nights. When going out to jogger, run, bike, dress up this set under your clothing to keep warm and cozy in cold climates or bad weather.
  • [Flexibility for Any Movement] - The 4-way stretch delivers full mobility and a squat proof design, its strong seams won’t tear prematurely. Long johns men thermal gives you flexibility by hugging your body to move, you’ll feel a sense of freedom in all your activities, they will keep you warm without sacrificing your range of motion or comfort, whether shopping or leisure.
  • [100% Satisfaction Guarantee] - We promise these are the most comfortable thermal underwear for men you will ever own. If you don't love your mens thermals for any reason, let us know and we'll slove this issue soon.
Show More
7
Thermal Underwear Mens Set Mens Thermals Top and Bottoms Long Sleeve Tops Long Johns Thermal Base Layer Thermals Men's Thermal Underwear for Winter Ski Sports L Black
Thermal Underwear Mens Set Mens Thermals Top and Bottoms Long Sleeve Tops Long Johns Thermal Base Layer Thermals Men's Thermal Underwear for Winter Ski Sports L Black
BENNIES
15% OffFree Shipping
Why we love it
  • Retains warmth effectively.
  • Comfortable and skin-friendly.
  • Excellent breathability.
Main Highlights
  • Warmth: Thermal underwear mens uses high-quality insulating materials that can effectively store body temperature, prevent heat loss and provide excellent insulation for the wearer
  • Comfort: Mens thermal underwear is close-fitting clothing, has good skin-friendliness, is comfortable to wear, does not cause a sense of restraint, and is suitable for daily wear.
  • Good breathability: Mens thermals has good breathability, can absorb sweat from the skin and quickly discharge it, keeping the body dry and comfortable.
  • Elasticity: Appropriate elasticity helps men's thermal underwear fit the body curve, provide better comfort and support, and avoid looseness or restraint. High elasticity makes the wearer more flexible during exercise without restricting the natural movement of the body.
  • Versatility: Men's thermal underwear can be used as a base layer and paired with a coat to adapt to different climates and various activity needs. These characteristics make thermal men not only suitable for cold weather, but also for various outdoor activities and daily wear.
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9.0
Superb
9.0
Superb
BENNIES
Thermal Underwear Mens Set Mens Thermals Top and Bottoms Long Sleeve Tops Long Johns Thermal Base Layer Thermals Men's Thermal Underwear for Winter Ski Sports L Black
15% OffFree Shipping
Why we love it
  • Retains warmth effectively.
  • Comfortable and skin-friendly.
  • Excellent breathability.
Main Highlights
  • Warmth: Thermal underwear mens uses high-quality insulating materials that can effectively store body temperature, prevent heat loss and provide excellent insulation for the wearer
  • Comfort: Mens thermal underwear is close-fitting clothing, has good skin-friendliness, is comfortable to wear, does not cause a sense of restraint, and is suitable for daily wear.
  • Good breathability: Mens thermals has good breathability, can absorb sweat from the skin and quickly discharge it, keeping the body dry and comfortable.
  • Elasticity: Appropriate elasticity helps men's thermal underwear fit the body curve, provide better comfort and support, and avoid looseness or restraint. High elasticity makes the wearer more flexible during exercise without restricting the natural movement of the body.
  • Versatility: Men's thermal underwear can be used as a base layer and paired with a coat to adapt to different climates and various activity needs. These characteristics make thermal men not only suitable for cold weather, but also for various outdoor activities and daily wear.
Show More
8
Heatwave® Pack of 2 Men's Thermal Long Sleeve Top, Warm Underwear Baselayer, S M L XL XXL Thermals, X Large Black
Heatwave® Pack of 2 Men's Thermal Long Sleeve Top, Warm Underwear Baselayer, S M L XL XXL Thermals, X Large Black
Heatwave Thermalwear
Free Shipping
Why we love it
  • Warm and cozy thermal tops.
  • Comfort fit for everyone.
  • Variety of color options.
Main Highlights
  • Pack Of 2 Men's Thermal Long Sleeve Top, Warm Underwear Baselayer
  • 0.45 TOG RATING- Hold more warm air close to the skin
  • 60% Cotton and 40% Polyester
  • Comfort Fit, the ribbed construction shapes to the contours of the body
  • Colour: White, Blue, Grey, Navy, Charcoal and Black
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8.9
Excellent
8.9
Excellent
Heatwave Thermalwear
Heatwave® Pack of 2 Men's Thermal Long Sleeve Top, Warm Underwear Baselayer, S M L XL XXL Thermals, X Large Black
Free Shipping
Why we love it
  • Warm and cozy thermal tops.
  • Comfort fit for everyone.
  • Variety of color options.
Main Highlights
  • Pack Of 2 Men's Thermal Long Sleeve Top, Warm Underwear Baselayer
  • 0.45 TOG RATING- Hold more warm air close to the skin
  • 60% Cotton and 40% Polyester
  • Comfort Fit, the ribbed construction shapes to the contours of the body
  • Colour: White, Blue, Grey, Navy, Charcoal and Black
Show More
9
Mountain Warehouse Talus Mens Thermal Baselayer Top - Quick Drying Jumper, Easy Care, Long Sleeves, Sweater, Breathable, Lightweight & High Wicking Black M
Mountain Warehouse Talus Mens Thermal Baselayer Top - Quick Drying Jumper, Easy Care, Long Sleeves, Sweater, Breathable, Lightweight & High Wicking Black M
Mountain Warehouse
Free Shipping
Why we love it
  • Keeps you cool and refreshed.
  • Perfect for travel and comfort.
  • Quick drying for easy washing.
Main Highlights
  • Isotherm - Densely packed fibres to retain heat & warmth without adding weight or discomfort
  • Moisture Wicking - Actively wicks moisture away from your body and dries quickly
  • Quick Drying - Thanks to the fabric composition, water dries quickly making it great for holiday wear and washing
  • Lightweight - Great for travelling, comfortable to wear and easy to pack
  • 2 year warranty - Includes a 2-year warranty for guaranteed quality and peace of mind
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8.9
Excellent
8.9
Excellent
Mountain Warehouse
Mountain Warehouse Talus Mens Thermal Baselayer Top - Quick Drying Jumper, Easy Care, Long Sleeves, Sweater, Breathable, Lightweight & High Wicking Black M
Free Shipping
Why we love it
  • Keeps you cool and refreshed.
  • Perfect for travel and comfort.
  • Quick drying for easy washing.
Main Highlights
  • Isotherm - Densely packed fibres to retain heat & warmth without adding weight or discomfort
  • Moisture Wicking - Actively wicks moisture away from your body and dries quickly
  • Quick Drying - Thanks to the fabric composition, water dries quickly making it great for holiday wear and washing
  • Lightweight - Great for travelling, comfortable to wear and easy to pack
  • 2 year warranty - Includes a 2-year warranty for guaranteed quality and peace of mind
Show More
10
Roadbox Thermal Underwear Base Layers for Women Fleece Lined Crew Neck Long Johns Warm Tops & Bootoms Sets Skiing Winter Black
Roadbox Thermal Underwear Base Layers for Women Fleece Lined Crew Neck Long Johns Warm Tops & Bootoms Sets Skiing Winter Black
Roadbox
20% OffFree Shipping
Why we love it
  • Micro-fleece lining retains heat.
  • Flexible four-way stretch fabric.
  • Quick moisture-wicking properties.
Main Highlights
  • Heat Retention: Stay warm with our women's thermal underwear, designed with a micro-fleece lining that effectively prevents body heat loss; This ensures you remain comfortable and warm during various winter outdoor activities
  • Comfortable Fabric: Made of 95% polyester and 5% spandex fabric, this women's thermal base layer provides all-day warmth and a wonderful feeling against your skin, allowing you to stay warm and comfortable throughout winter
  • Four-Way Stretch: Featuring four-way stretch fabric, these thermal long johns perfectly conform to your body shape, offering exceptional flexibility and stretchability, allowing you to enjoy excellent freedom of movement
  • Moisture-Wicking: This thermal set quickly evaporates sweat and ensures excellent breathability, keeping your body dry and comfortable during various physical activities, providing a nice feeling in cold weather
  • Excellent Choice: Whether you’re lounging at home, exercising, or engaging in outdoor activities, our women's thermal set is the wonderful choice; It serves as an excellent base layer for activities like skiing, running, or hiking
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8.7
Excellent
8.7
Excellent
Roadbox
Roadbox Thermal Underwear Base Layers for Women Fleece Lined Crew Neck Long Johns Warm Tops & Bootoms Sets Skiing Winter Black
20% OffFree Shipping
Why we love it
  • Micro-fleece lining retains heat.
  • Flexible four-way stretch fabric.
  • Quick moisture-wicking properties.
Main Highlights
  • Heat Retention: Stay warm with our women's thermal underwear, designed with a micro-fleece lining that effectively prevents body heat loss; This ensures you remain comfortable and warm during various winter outdoor activities
  • Comfortable Fabric: Made of 95% polyester and 5% spandex fabric, this women's thermal base layer provides all-day warmth and a wonderful feeling against your skin, allowing you to stay warm and comfortable throughout winter
  • Four-Way Stretch: Featuring four-way stretch fabric, these thermal long johns perfectly conform to your body shape, offering exceptional flexibility and stretchability, allowing you to enjoy excellent freedom of movement
  • Moisture-Wicking: This thermal set quickly evaporates sweat and ensures excellent breathability, keeping your body dry and comfortable during various physical activities, providing a nice feeling in cold weather
  • Excellent Choice: Whether you’re lounging at home, exercising, or engaging in outdoor activities, our women's thermal set is the wonderful choice; It serves as an excellent base layer for activities like skiing, running, or hiking
Show More