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Men's Base Layers & Long Underwear

Sleek bamboo, toasty wool, or versatile synthetic? When it comes to base layers, there’s a material for every occasion. Use our thin thermal underwear sets all year round and cozy up with our warmest base layers when the mercury drops. Regardless of the season, we have a base layer for you. All our men’s thermal underwear is snug-fitting, moisture-wicking, and fast-drying to keep you comfortable even during the most intense days in the great outdoors.

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View Products (23)
Bambooskin Base Layer Set Black/Grey Men
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Black/Grey 

Bambooskin Base Layer Set

Black/Grey Men

$79
$79
10 more colors
+ 8
Bambooskin Base Layer Set Anthracite Men
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Anthracite 

Bambooskin Base Layer Set

Anthracite Men

$79
$79
10 more colors
+ 8
Fuse Merino Base Layer Set Anthracite Men
Slim Fit
Slim Fit
115 reviews
4.5 (115)

Fuse Merino Base Layer Set Men Anthracite 

Fuse Merino Base Layer Set

Anthracite Men

$119
$119
Bambooskin Base Layer Set Autumn Aztec Men
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Autumn Aztec 

Bambooskin Base Layer Set

Autumn Aztec Men

$79
$79
10 more colors
+ 8
Sneaky Balaclava Base Layer Set Smokey Camo Men
Slim Fit
Slim Fit
1460 reviews
4.7 (1,460)

Sneaky Balaclava Base Layer Set Men Smokey Camo 

Sneaky Balaclava Base Layer Set

Smokey Camo Men

$85
$85
+ 1
Fuse Merino Base Layer Set Stargazer Men
Slim Fit
Slim Fit
115 reviews
4.5 (115)

Fuse Merino Base Layer Set Men Stargazer 

Fuse Merino Base Layer Set

Stargazer Men

$119
$119
Hiball Waffle Base Layer Set Black/Flame Men
Slim Fit
Slim Fit
614 reviews
4.8 (614)

Hiball Waffle Base Layer Set Men Black/Flame 

Hiball Waffle Base Layer Set

Black/Flame Men

$89
$89
+ 1
Hiball Waffle Base Layer Set Olive Night Men
Slim Fit
Slim Fit
614 reviews
4.8 (614)

Hiball Waffle Base Layer Set Men Olive Night 

Hiball Waffle Base Layer Set

Olive Night Men

$89
$89
+ 1
Sneaky Balaclava Base Layer Set Black/Flame Men
Slim Fit
Slim Fit
1460 reviews
4.7 (1,460)

Sneaky Balaclava Base Layer Set Men Black/Flame 

Sneaky Balaclava Base Layer Set

Black/Flame Men

$85
$85
+ 1
New In
Slim Fit
Slim Fit
614 reviews
4.8 (614)

Hiball Waffle Base Layer Set Men Anthracite/Radiant Yellow 

Hiball Waffle Base Layer Set

Anthracite/Radiant Yellow Men

$89
$89
+ 1
New In
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Molten Lava 

Bambooskin Base Layer Set

Molten Lava Men

$79
$79
10 more colors
+ 8
New In
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Blueberry 

Bambooskin Base Layer Set

Blueberry Men

$79
$79
10 more colors
+ 8
New In
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Forest Night 

Bambooskin Base Layer Set

Forest Night Men

$79
$79
10 more colors
+ 8
Out of stock
Slim Fit
Slim Fit
1460 reviews
4.7 (1,460)

Sneaky Balaclava Base Layer Set Men Hunter 

Sneaky Balaclava Base Layer Set

Hunter Men

$85
$85
+ 1
Out of stock
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Butcher Camo 

Bambooskin Base Layer Set

Butcher Camo Men

$79
$79
10 more colors
+ 8
Out of stock
Slim Fit
Slim Fit
1460 reviews
4.7 (1,460)

Sneaky Balaclava Base Layer Set Men Teal Camo 

Sneaky Balaclava Base Layer Set

Teal Camo Men

$85
$85
+ 1
Out of stock
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Sniper Camo 

Bambooskin Base Layer Set

Sniper Camo Men

$79
$79
10 more colors
+ 8
Out of stock
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Grey Mr.Cozy 

Bambooskin Base Layer Set

Grey Mr.Cozy Men

$79
$79
10 more colors
+ 8
Out of stock
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Grey 

Bambooskin Base Layer Set

Grey Men

$79
$79
10 more colors
+ 8
Out of stock
Slim Fit
Slim Fit
614 reviews
4.8 (614)

Hiball Waffle Base Layer Set Men Blue Lagoon 

Hiball Waffle Base Layer Set

Blue Lagoon Men

$89
$89
+ 1
Out of stock
Slim Fit
Slim Fit
95 reviews
4.5 (95)

Merino Wool Pants Men Black/Fern 

Merino Wool Pants

Black/Fern Men

$59
$59
Out of stock
Slim Fit
Slim Fit
1714 reviews
4.7 (1,714)

Bambooskin Base Layer Set Men Spot on 

Bambooskin Base Layer Set

Spot on Men

$79
$79
10 more colors
+ 8
Out of stock
Slim Fit
Slim Fit
95 reviews
4.5 (95)

Merino Wool Pants Men Captain 

Merino Wool Pants

Captain Men

$59
$59

Men's Base Layers & Long Underwear

Sleek bamboo, toasty wool, or versatile synthetic? When it comes to base layers, there’s a material for every occasion. Use our thin thermal underwear sets all year round and cozy up with our warmest base layers when the mercury drops. Regardless of the season, we have a base layer for you. All our men’s thermal underwear is snug-fitting, moisture-wicking, and fast-drying to keep you comfortable even during the most intense days in the great outdoors.

The layering principle - Shop long underwear for men online

RevolutionRace long underwear are the perfect base layer garments to wear closest to your body. Whether it is below zero or really high humidity, we have long underwear that helps to wick moisture away and keep you warm depending on what temperature you are in.

Choose between long underwear shirts or pants and matching sets as well as different types of materials like merino wool and bamboo. Our long johns and base layers are suitable for all types of outdoor activities, such as hiking, skiing, hiking, camping or fishing. Enjoy high quality long underwear that fits all temperatures, from mountain hiking in icy cold weather to trekking on warm days.

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