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Icebreaker Everyday Bodyfit 200 Base Layer Bottoms - UPF 20+, Merino Wool (For Men) in Cave - Closeouts
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$41.95 Save 30%
Compare at $60.00 Closeouts
Terramar Silk Interlock Turtleneck - Long Sleeve (For Men) in White - 2nds
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$23.96 Save 46%
Regular $29.95 Compare at $45.00 2nds
Kenyon Polartec® Power Stretch®  Base Layer Bottoms - Heavyweight (For Men) in Navy - 2nds
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$26.00 Save 52%
Regular $32.50 Compare at $54.99 2nds
SmartWool 2013 PhD HyFi Hoodie Jacket (For Men) in Black - Closeouts
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$144.95 Save 34%
Compare at $220.00 Closeouts
Icebreaker Oasis T-Shirt - UPF 30+, Merino Wool, Lightweight, Short Sleeve (For Men) in Cave - Closeouts
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$51.95 Save 30%
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Icebreaker Everyday Boxer Briefs - UPF 20+, Merino Wool (For Men) in Cave - Closeouts
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$23.95 Save 31%
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ExOfficio Boxer Briefs - Underwear (For Men) in Black - 2nds
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$17.95 Save 30%
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Icebreaker Tech Zip Neck Shirt - UPF 30+, Merino Wool, Midweight, Long Sleeve (For Men) in Copper/Monsoon - Closeouts
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$72.95 Save 30%
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Icebreaker Oasis Shirt - UPF 30+, Merino Wool, Long Sleeve (For Men) in Concord - Closeouts
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$62.95 Save 30%
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SmartWool TML Heavy Full-Zip Shirt - Merino Wool, Heavyweight, Long Sleeve (For Men) in Graphite - Closeouts
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$149.95 Save 31%
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Icebreaker Apex Base Layer Bottoms - UPF 30+, Merino Wool, Built-In Fly (For Men) in Walnut - Closeouts
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$69.95 Save 30%
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Icebreaker Tech Shirt - UPF 30+, Merino Wool, Midweight, Long Sleeve (For Men) in Copper/Monsoon - Closeouts
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$69.95 Save 30%
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Icebreaker Original Zip Base Layer Top - Merino Wool, Zip Neck, Long Sleeve (For Men) in Gravel - Closeouts
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$104.95 Save 30%
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2(x)ist No-Show Underwear - Briefs, 3-Pack (For Men) in White - Closeouts
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$19.95 Save 37%
Compare at $32.00 Closeouts
Columbia Sportswear Omni-Heat® Base Layer Top - Midweight, Long Sleeve (For Men) in Grill - Closeouts
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$35.95 Save 34%
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Terramar Helix T-Shirt - UPF 25+, Long Sleeve (For Men) in Gunmetal - Closeouts
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$14.95 Save 40%
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Icebreaker Sonic Crew Top - Merino Wool, Long Sleeve (For Men) in Force - Closeouts
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$69.95 Save 30%
Compare at $99.99 Closeouts
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About Men's Underwear & Base Layer

Dressing comfortably starts with selecting the right men’s underwear. Every man knows whether he prefers boxers, briefs, cotton blends, flannel or silk. But besides standard men’s underwear (boxers and briefs), winter activities require the warmth of men’s thermal base layer underwear. Since this layer is the closest thing to your skin, most men’s base layer underwear is made of breathable, moisture-wicking fabric. Unlike traditional cotton underwear, performance fabrics aid in the evaporation of sweat and prevent rapid cool down. It’s important to consider the weight when choosing men’s thermal underwear: lightweight, midweight or expedition weight are common. Look for men’s base layer underwear or wicking T-shirts featuring technological innovations like X-Static® for increased odor-resistance or Dryflo® for enhanced wicking. Merino wool and featherweight silk men’s thermal underwear are natural options for wicking underwear. Look for men’s underwear from high-quality brands like Terramar, Kenyon and Mountain Hardwear.
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