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Trailspace is a product review site for outdoor enthusiasts. Use it to find and share great gear.

Base Layers and Underwear

Showing 1-50 of 1245 items

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Tops (595)
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Boxers, Briefs, Bikinis (150)
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ExOfficio (19)
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ExOfficio Give-N-Go Boxer Brief

ExOfficio Give-N-Go Boxer Brief

Boxers, Briefs, Bikini
user rating: 5 of 5 
based on 4 reviews
$17 - $26
where to buy
Arc'teryx Rho LT Zip

Arc'teryx Rho LT Zip

Base Layer Top
user rating: 5 of 5 
based on 2 reviews
$95 - $118
where to buy
Marmot Midweight Bottom

Marmot Midweight Bottom

Base Layer Bottom
user rating: 5 of 5 
based on 2 reviews
Patagonia R1 Pants

Patagonia R1 Pants

Base Layer Bottom
user rating: 5 of 5 
based on 2 reviews
$89 - $99
where to buy
SmartWool Midweight Zip T
user rating: 5 of 5 
based on 2 reviews
$51 - $105
where to buy
SmartWool Microweight Crew
user rating: 4.5 of 5 
based on 3 reviews
$41 - $80
where to buy
SmartWool Microweight Tee
user rating: 4.5 of 5 
based on 3 reviews
$30 - $75
where to buy
Ibex Balance Briefs

Ibex Balance Briefs

Base Layer Bottom
user rating: 5 of 5 
based on 1 review
Polarmax Tech Silk Crew
user rating: 5 of 5 
based on 1 review
$17 - $19
where to buy
SmartWool Midweight Crew
user rating: 5 of 5 
based on 1 review
$38 - $95
where to buy
Helly Hansen Fly Pant

Helly Hansen Fly Pant

Base Layer Bottom
user rating: 5 of 5 
based on 1 review
$26 - $39
where to buy
Marmot Lightweight Bottom

Marmot Lightweight Bottom

Base Layer Bottom
user rating: 5 of 5 
based on 1 review
$28 - $74
where to buy
SmartWool Lightweight Zip T
user rating: 4 of 5 
based on 4 reviews
$47 - $100
where to buy
SmartWool Microweight Bottom
user rating: 4.5 of 5 
based on 1 review
$40 - $75
where to buy
Icebreaker Anatomica Brief

Icebreaker Anatomica Brief

Boxers, Briefs, Bikini
user rating: 4.5 of 5 
based on 1 review
$24 - $29
where to buy
SmartWool Midweight Funnel Zip
user rating: 4.5 of 5 
based on 1 review
$86 - $114
where to buy
SmartWool Midweight Bottom
user rating: 4 of 5 
based on 2 reviews
$47 - $95
where to buy
Marmot Midweight Zip LS
user rating: 4 of 5 
based on 2 reviews
$30 - $43
where to buy
Terramar SmartSilk Tights

Terramar SmartSilk Tights

Base Layer Bottom
user rating: 4 of 5 
based on 2 reviews
RedRam Merino Legging

RedRam Merino Legging

Base Layer Bottom
user rating: 4 of 5 
based on 1 review
SportHill Northwind Unders

SportHill Northwind Unders

Boxers, Briefs, Bikini
user rating: 4 of 5 
based on 1 review
ExOfficio Give-N-Go Lacy Full Cut Brief
user rating: 4 of 5 
based on 1 review
$12 - $21
where to buy
Ibex Zepher Zip T-Neck
user rating: 4 of 5 
based on 1 review
$80 - $114
where to buy
Icebreaker 200 Lightweight Legging
user rating: 4 of 5 
based on 1 review
$58 - $72
where to buy
2XU Elite Compression Tight
user rating: 3.5 of 5 
based on 1 review
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