Men's Base Layers & Thermal Underwear

Men's Base Layers & Thermal Underwear

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Men's Ski Base Layer Bottoms - BL 500 - Black, Image of
Men's Ski Base Layer Bottoms - BL 500 - Black, Image of
Decathlon Wedze

Men's Ski Base Layer Bottoms - BL 500 - Black

(Average rating: 4.73 out of 5 stars, 815 Reviews)

Regular price, $19.99 Regular price, $9,999,999.99

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Forclaz Men's MT500 Long-sleeve 100% Merino Wool T-shirt, Image of
Forclaz Men's MT500 Long-sleeve 100% Merino Wool T-shirt, Image of
Decathlon Forclaz

Forclaz Men's MT500 Long-sleeve 100% Merino Wool T-shirt

(Average rating: 4.53 out of 5 stars, 782 Reviews)

Regular price, $79.99 Regular price, $9,999,999.99

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Forclaz Men's Mountain Backpacking Merino Wool Base Layer Tights Leggings - MT900, Image of
Forclaz Men's Mountain Backpacking Merino Wool Base Layer Tights Leggings - MT900, Image of
Decathlon Forclaz

Forclaz Men's Mountain Backpacking Merino Wool Base Layer Tights Leggings - MT900

(Average rating: 4.66 out of 5 stars, 105 Reviews)

Regular price, $99.99 Regular price, $9,999,999.99

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Forclaz Men's MT900 Merino Wool Long-sleeve Shirt, Image of
Forclaz Men's MT900 Merino Wool Long-sleeve Shirt, Image of
Decathlon Forclaz

Forclaz Men's MT900 Merino Wool Long-sleeve Shirt

(Average rating: 4.67 out of 5 stars, 564 Reviews)

Regular price, $99.99 Regular price, $9,999,999.99

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Wedze Men's BL100 Base Layer Top, Image of
Wedze Men's BL100 Base Layer Top, Image of
Decathlon Wedze

Wedze Men's BL100 Base Layer Top

(Average rating: 4.62 out of 5 stars, 10945 Reviews)

Regular price, $9.99 Regular price, $9,999,999.99

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Wedze M Ski Thermal Base Layer Bottoms - BL 100 - Black, Image of
Wedze M Ski Thermal Base Layer Bottoms - BL 100 - Black, Image of
Decathlon Wedze

Wedze M Ski Thermal Base Layer Bottoms - BL 100 - Black

(Average rating: 4.59 out of 5 stars, 5281 Reviews)

Regular price, $9.99 Regular price, $9,999,999.99

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Forclaz Men's Mountain Backpacking Merino Wool Base Layer Tights Leggings - MT500, Image of
Forclaz Men's Mountain Backpacking Merino Wool Base Layer Tights Leggings - MT500, Image of
Decathlon Forclaz

Forclaz Men's Mountain Backpacking Merino Wool Base Layer Tights Leggings - MT500

(Average rating: 4.56 out of 5 stars, 654 Reviews)

Regular price, $79.99 Regular price, $9,999,999.99

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Free shipping over $49

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Forclaz Men's Mountain Backpacking Merino Wool Boxer Shorts MT500, Image of
Forclaz Men's Mountain Backpacking Merino Wool Boxer Shorts MT500, Image of
Decathlon Forclaz

Forclaz Men's Mountain Backpacking Merino Wool Boxer Shorts MT500

(Average rating: 4.43 out of 5 stars, 1260 Reviews)

Regular price, $34.99 Regular price, $9,999,999.99

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Forclaz Men's Mountain Backpacking Merino Wool Long-Sleeved T-Shirt with zip collar - MT500, Image of
Forclaz Men's Mountain Backpacking Merino Wool Long-Sleeved T-Shirt with zip collar - MT500, Image of
Decathlon Forclaz

Forclaz Men's Mountain Backpacking Merino Wool Long-Sleeved T-Shirt with zip collar - MT500

(Average rating: 4.63 out of 5 stars, 884 Reviews)

Regular price, $89.99 Regular price, $9,999,999.99

Limited Sizes

Free shipping over $49

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About Our Men's Base Layers

Heading into cold weather? Whether you’re going out to ski or you’re on your next cycling adventure, Decathlon’s base layers have got you covered. 

Ski Base Layers

Our ski base layers are warm, featuring a brushed material that also allows for breathability and moisture wicking. Some even feature odor control so you can always feel fresh on your runs! Don’t worry, all of our ski base layers are perfect for snowboarding, too!

Cycling Base Layers

Our cycling base layers are engineered with quick-drying technology and are made to be ultra lightweight so they don’t weigh you down on your travels. The moisture wicking properties of our high-tech fabric ensure a comfortable ride from start to finish. And don’t worry, the material moves with you so you’ll never feel constrained while you’re on the road.

Sport Base Layers

Looking to play soccer? Do a few rounds of golf on your favorite green? We have base layers for a variety of other sports as well! We design for men, women, and kids.