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Base Layer

111 products
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27% Off
Coldpruf Platinum II Midweight Underwear Pants - Men's Tall Black thermal leggings with brand logos on a white background
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$32.99
$32.99
$45.00
Your TRUSTED base layer REBUILT for the MODERN ADVENTURE. Inside Layer: 100% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness Outside Layer: 70% polyester / 30% MERINO WOOL...
25% Off
Man wearing a gray long-sleeve athletic shirt with a brand logo on a white background Person wearing a gray long-sleeve athletic shirt with a brand logo on the back.
$41.25
$41.25
$55.00
We all hate it. That stiff, distracted feeling you get when you're out in the cold. That's why, we built a baselayer that keeps you warm and dry without being bulky or riding up, so you can stay fo...
25% Off
Under Armour UA Base™ 2.0 Women's Leggings Under Armour UA Base™ 2.0 Women's Leggings
$45.00
$45.00
$60.00
Meet the all-new UA Base™—delivering the same trusted warmth without the bulk—now softer and smoother than ever for unmatched comfort on every adventure. UA Base™ 2.0 Active Baselayer is lightweig...
25% Off
Under Armour UA Base™ 2.0 Women's Crew Under Armour UA Base™ 2.0 Women's Crew
$45.00
$45.00
$60.00
Meet the all-new UA Base™—delivering the same trusted warmth without the bulk—now softer and smoother than ever for unmatched comfort on every adventure. UA Base™ 2.0 Active Baselayer is lightweig...
25% Off
Under Armour UA Base™ 2.0 Men's Crew Under Armour UA Base™ 2.0 Men's Crew
$45.00
$45.00
$60.00
Meet the all-new UA Base™—delivering the same trusted warmth without the bulk—now softer and smoother than ever for unmatched comfort on every adventure. UA Base™ 2.0 Active Baselayer is lightweig...
Teal pullover with a brand logo on a white background Woman wearing a black long-sleeve top with a zipper on a light pink background
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+1
$140.00
$140.00
$0.00
Warm, versatile Polartec® Power Stretch® Pro base layer for cold conditions. The Kyanite Baselayer Zip Neck was previously the Rho Heavyweight Zip Neck. The Kyanite Baselayers are made for cold day...
40% Off
Person wearing a black long-sleeve top and blue pants with a beige cap on a light gray background Person wearing a black hoodie and gray pants on a light gray background
+2
+1
$39.00
$39.00
$65.00
The super soft UPF 50 hoody for adventures big and small Perfect for giving it your all on the next pitch or pacing on your favorite trail, the Butter™ Long Sleeve Hoody is big on performance witho...
40% Off
Person wearing a black long-sleeve top and red beanie on a light gray background Woman wearing a light purple long-sleeve athletic top on a white background
+2
+1
$42.00
$42.00
$70.00
The super soft, half-zip that’s at home in the high alpine and casual days at lower elevations This perfect moisture-wicking base layer is buttery soft, allowing you to move effortlessly through an...
40% Off
Person wearing black long-sleeve top and leggings with gray socks on a white background
$48.00
$48.00
$80.00
An alpine-inspired tight that can be worn as a single or base layer From high alpine trails to the climbing gym, the Butter™ Tight is a versatile, buttery soft base layer that pairs perfectly under...
40% Off
Person wearing a black long-sleeve top and maroon puffer pants with a purple beanie on a light gray background Person wearing a purple long-sleeve shirt and green pants on a light gray background
+2
+1
$36.00
$36.00
$60.00
Crucial UPF 50 sun protection that’s moisture wicking and anti-odor for running solo or layering. Make every high effort outing smooth as butter with a long-sleeve layer that’s worth its weight in ...
Smartwool Men's Classic All-Season Merino Base Layer Long Sleeve Shirt Smartwool Men's Classic All-Season Merino Base Layer Long Sleeve Shirt
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+2
+1
$90.00
$90.00
Spring skiing or summer camping? The year-round Men's Classic All-Season Merino Base Layer Long Sleeve is game for either. With our Core Spun technology, we've wrapped lightweight Merino around a n...
Woman wearing a blue and floral long-sleeve top on a white background Woman wearing a patterned long-sleeve top and leggings on a white background
$130.00
$130.00
Meet the Women's Classic Thermal Merino Base Layer Colorblock Crew. This 100% Merino wool fan-favorite combines the moisture management, temperature regulation, and odor resistance of Merino with t...
Woman wearing a black long-sleeve athletic shirt on a white background Person wearing a black full-body suit on a white background
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+2
+1
$90.00
$90.00
An all-season favorite, the Women's Classic All-Season Merino Base Layer Long Sleeve can be sported as a base layer in the fall or summer when it's time to go backpacking. This base layer features ...
25% Off
Coldpruf Quest Performance Women's Crew Shirt
$29.99
$29.99
$40.00
The Holy Grail of base layers. Single-layer, jersey knit fabric Fabric Weight: 6.5 oz  Fiber Content: 85% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness / 15% Spandex...
40% Off
Mountain Hardwear Men's Butter Up™ Slim Pant Mountain Hardwear Men's Butter Up™ Slim Pant
$59.40
$59.40
$99.00
An alpine-inspired active slim pant that can be worn alone or as a base layer From high alpine trails to the climbing gym, the Butter™ Slim Pant is a versatile, buttery soft base layer that pairs p...
40% Off
Mountain Hardwear Men's Butter Up™ Long Sleeve Shirt Mountain Hardwear Men's Butter Up™ Long Sleeve Shirt
+3
+2
+1
$36.00
$36.00
$60.00
Crucial UPF 50 sun protection that’s moisture wicking and anti-odor for running solo or layering. Make every high effort outing smooth as butter with a long-sleeve layer that’s worth its weight in ...
Smartwool Kids' Classic Thermal Merino Base Layer Crew Smartwool Kids' Classic Thermal Merino Base Layer Crew
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+5
+4
+3
+2
$65.00
$65.00
Our Kids' Classic Thermal Merino Base Layer Crew is made of 100% responsibly sourced Merino wool to help your little ones stay comfortable on snow days and activities in the mountains. With a flatl...
33% Off
Black leggings with brand logo on a white background Three children wearing black wetsuits on a white background
$19.99
$19.99
$30.00
This form-fitting, lightweight base layer will help keep you warm and dry. Its wicking properties take moisture away from your body while the poly blend fibers help keep you warm. Active stretch an...
Black leggings with a brand logo on a white background
$43.00
$43.00
$0.00
Our Men's Active Stretch Bottom offers superior moisture-wicking performance combined with thermal warmth to keep you comfortable during any activity. Its flexible, stretch fabric moves with you, p...
Black long-sleeve shirt on a white background
$43.00
$43.00
$0.00
Our Men's Active Stretch Crewneck delivers reliable thermal performance with a comfortable, flexible fit. Designed to wick moisture and retain warmth, this top keeps you dry and cozy during intense...
Black long-sleeve shirt on a white background
$43.00
$43.00
$0.00
The Women's Active Stretch Crewneck is a versatile long-sleeve base layer designed to keep you comfortable and dry during any activity. Its moisture-wicking fabric moves with you, providing a snug ...
Black leggings on a white background
$43.00
$43.00
$0.00
The Womens Active Stretch Tight combines moisture-wicking technology with thermal warmth to keep you comfortable and dry. Its stretchy, close-fitting fabric moves with your body, providing support ...
Person wearing black leggings on a white background Person wearing black long-sleeve top and leggings on a white background
$90.00
$90.00
Our Women's Classic All-Season Merino Base Layer Bottoms are the perfect layer to put on for your warm-weather adventures. Made of lightweight, breathable Merino, these base layer pants have an upd...
25% Off
Coldpruf Polypropylene Underwear Crewneck Shirt - Kid's
$14.99
$14.99
$20.00
Sizes: XS(4-5), S(6-8), M(10-12), L(14-16), XL(18-20).The Enthusiast underwear program by Coldpruf features single-layer 100% polypropylene construction. It is designed to give a close comfortable ...
25% Off
Coldpruf Polypropylene Underwear Pants - Kid's
$14.99
$14.99
$20.00
The Enthusiast underwear program by Coldpruf features single-layer 100% polypropylene construction. It is designed to give a close comfortable fit without being restrictive. The Enthusiast is light...
Coldpruf Quest Performance Youth Crew Shirt
$25.00
$25.00
The Holy Grail of base layers. Single-layer, jersey knit fabric Fabric Weight: 6.5 oz  Fiber Content: 85% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness / 15% Spandex...
Coldpruf Quest Performance Youth Unisex Pant
$25.00
$25.00
The Holy Grail of base layers. Single-layer, jersey knit fabric Fabric Weight: 6.5 oz  Fiber Content: 85% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness / 15% Spandex ...
Black long-sleeve athletic shirt on a white background
$37.99
$37.99
$0.00
Performance that moves with you. The ColdPruf® Style 49A Performance Crew is built for cold to very cold weather and medium- to high-activity levels. Its athletic, close-to-body fit makes it an exc...
Black long-sleeve athletic shirt on a white background
$37.99
$37.99
Performance that moves with you. Designed for cold to very cold conditions and medium- to high-activity levels, the ColdPruf® Style 89A Performance Crew is a versatile base layer that can also be w...
5% Off
Black compression pants on a white background
$37.99
$37.99
$40.00
Performance that moves with you. Designed for cold to very cold conditions and medium- to high-activity levels, the ColdPruf® Style 89B Performance Pants deliver essential warmth, comfort, and flex...
Black leggings on a white background
$37.99
$37.99
$0.00
Performance that moves with you. The ColdPruf® Style 49B Performance Pants are designed for cold to very cold weather and medium- to high-activity levels. With a close athletic fit, they sit just b...
Black long-sleeve shirt on a white background
$48.00
$48.00
$0.00
Billowy warmth without added weight, Micro Fleece under layers are durable and breathable. When it's really chilly outside, let our Micro Fleece keep you warm so you can focus on fun! Our Micro Fle...

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