10 Best base layers of 2025

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Best Choice

1

Merino.tech
Merino.tech Merino Wool Base Layer Mens Set - Heavyweight, Midweight, Lite Merino Wool Thermal Underwear For Men Top, Bottom (Large, 250 Black)

23% Off
Main highlights

Comfort and Temperature Regulation
Made from superfine 17.5 micron Merino wool, the base layer offers itch-free comfort and natural temperature regulation for all-day wear.

Versatile Outdoor Use
Ideal for hiking, skiing, and everyday wear, adapting to different weather conditions with ease.

Moisture Wicking Performance
Customers praise its ability to wick away sweat, keeping you dry and comfortable during intense activities.
9.8

Exceptional

Our Rating

9.9
Warmth

9.9
Comfort

9.7
sweat control
How do we rank?

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Value for Money

2

Carhartt
Carhartt Men's Force Midweight Classic Thermal Base Layer Pant, Black, Medium
Main highlights

Heat Retention and Comfort
Waffle knit traps heat, fast dry wicks sweat, and fights odor for all-day comfort.

Ideal for Active Use
Rugged flex technology and strategic seam placement enhance movement, making it perfect for active jobs.

Durability and Low Profile
Praised for durability over two winters and its low-profile design.
9.6

Exceptional

Our Rating

9.3
Comfort

9.1
lasts a long time

8.0
Warmth
3

Thermajohn
Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather (Medium, Black)

25% Off
Main highlights

Heat Retention and Comfort
Designed for warmth with ultra-soft fleece lining, moisture-wicking fabric, and 4-way stretch for freedom of movement. Ideal for layering in cold weather.

Ideal for Cold Weather Activities
Perfect for skiing, winter camping, working in cold environments, and as a base layer under clothing. Provides warmth without bulk.

Praised for Comfort and Fit
Customers love the softness, warmth, and comfort. Fits snugly without bunching, and allows for free movement. True to size and versatile.
9.4

Excellent

Our Rating

9.9
Comfort

9.7
Warmth

9.3
sweat control
4

Cuddl Duds

Cuddl Duds Thermal Underwear for Women - Women's Cold Weather Clothes Fleece Lined Thermal Long Johns Set - Winter Base Layer Clothing Thermal Shirt Top and Leggings Pants 2Pc Set for Women - Black M
9.3

Excellent

Our Rating
5

WEERTI
WEERTI Thermal Underwear for Men Long Johns with Fleece Lined, Base Layer Men Cold Weather Top Bottom Black
Main highlights

Comfortable All-Day Wear
Long johns fit snugly, minimizing heat loss while providing warmth and security.

Ideal for Cold Weather Use
Perfect under formal or casual attire, or as pajamas.

Praised for Comfort and Fit
Super comfy, soft, stretchy with a fleece-lined interior.
9.2

Excellent

Our Rating

9.9
Comfort

9.5
lengthen

9.3
sweat control
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6

Under Armour
Under Armour Men's HeatGear Armour Leggings , Black (001)/Pitch Gray, Large
Main highlights

Lightweight Fabric and Quick Drying
Super-light HeatGear fabric offers superior coverage without weighing you down, with fast sweat-wicking and drying properties.

Ideal for Cool Weather Activities
Perfect for running, cycling, and training in cool temperatures, providing warmth without bulk.

Praised for Durability and Fit
Customers appreciate the ergonomic design and durability, withstanding frequent use and washing.
9.0

Excellent

Our Rating

9.5
Comfort

8.7
Comfortable

8.0
lasts a long time
7

DEVOPS

DEVOPS Women's 2 Pack Thermal Long Sleeve Shirts Compression Baselayer Tops (Medium, Black/White)
8.9

Very Good

Our Rating
8

Thermajane
Thermajane Long Johns Thermal Underwear for Women Fleece Lined Base Layer Pajama Set Cold Weather (Medium, Grey)

25% Off
Main highlights

Heat Retention and Comfort
Thermajane thermal underwear retains body heat for warmth and coziness.

Ideal for Cold Weather
Perfect as a base layer for everyday cold weather activities.

Softness Praised by Users
Fleece lining is frequently highlighted for its extra softness and comfort.
8.8

Very Good

Our Rating
9

WEERTI
WEERTI Thermal Underwear for Women Long Johns with Fleece Lined, Base Layer Women Cold Weather Top Bottom Black
Main highlights

All Day Comfortable Wearing Experience
Long johns for women fit snug like a second skin, lightweight but warm, minimizing heat loss and providing a sense of security throughout the winter.

Perfect for Outdoor Activities and Indoor Comfort
Ideal for hiking, skiing, ranch chores, and lounging at home. Keeps you warm without overheating and fits well under casual or formal attire.

Most Praised Feature: Softness and Comfort
Customers consistently highlight the softness and comfort of the fabric, making it perfect for both outdoor activities and as a cozy base layer.
8.6

Very Good

Our Rating

9.9
Comfort

9.7
Warmth

9.5
sweat control
10

Under Armour

Under Armour Boys ColdGear Armour Baselayer Leggings , Black (001)/White , Large

35% Off
8.5

Good

Our Rating

10 Best base layers of 2025

1

Merino.tech Merino Wool Base Layer Mens Set - Heavyweight, Midweight, Lite Merino Wool Thermal Underwear For Men Top, Bottom (Large, 250 Black)

9.9

9.9

9.7

2

Carhartt Men's Force Midweight Classic Thermal Base Layer Pant, Black, Medium

9.3

9.1

8.0

3

Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather (Medium, Black)

9.9

9.7

9.3

4

Cuddl Duds Thermal Underwear for Women - Women's Cold Weather Clothes Fleece Lined Thermal Long Johns Set - Winter Base Layer Clothing Thermal Shirt Top and Leggings Pants 2Pc Set for Women - Black M

5

WEERTI Thermal Underwear for Men Long Johns with Fleece Lined, Base Layer Men Cold Weather Top Bottom Black

9.9

9.5

9.3

6

Under Armour Men's HeatGear Armour Leggings , Black (001)/Pitch Gray, Large

9.5

8.7

8.0

7

DEVOPS Women's 2 Pack Thermal Long Sleeve Shirts Compression Baselayer Tops (Medium, Black/White)

8

Thermajane Long Johns Thermal Underwear for Women Fleece Lined Base Layer Pajama Set Cold Weather (Medium, Grey)

9

WEERTI Thermal Underwear for Women Long Johns with Fleece Lined, Base Layer Women Cold Weather Top Bottom Black

9.9

9.7

9.5

10

Under Armour Boys ColdGear Armour Baselayer Leggings , Black (001)/White , Large

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