Men's Base Layers and Underwear

Showing 51-100 of 715 items

Refine by Type:
Tops (379)
Bottoms (206)
Base Layer Suits (12)
Boxers, Briefs, Bikinis (83)
Compression (24)

Refine by Brand:
Patagonia (57)
ExOfficio (5)
Arc'teryx (24)
Marmot (9)
SmartWool (30)
Stoic (16)
Icebreaker (52)
Mountain Hardwear (7)
Polarmax (17)
REI (21)

Refine by Price:
less than $25 (92)
$25 - $49.99 (311)
$50 - $99.99 (272)
$100 - $199.99 (43)
$200 and above (2)

Sort by: name | rating | price | availability

Patagonia Merino 3 Midweight Bottoms

Base Layer Bottom

not yet rated
write a review

$53 - $89
where to buy

Icebreaker Sierra Half Zip

Base Layer Top

not yet rated
write a review

$83 - $88
where to buy

Arc'teryx Phase SV Crew LS

Base Layer Top

not yet rated
write a review

$79
where to buy

Patagonia Capilene 3 Midweight Crew

Base Layer Top

not yet rated
write a review

$29 - $55
where to buy

Patagonia Merino 3 Midweight Boot-Top Bottoms

Base Layer Bottom

not yet rated
write a review

$89
where to buy

EMS Techwick Midweight One-Piece Suit

One-Piece Base Layer

not yet rated
write a review

$69
where to buy

Kenyon Polarskins Long Underwear Shirt - Lightweight

Base Layer Top

not yet rated
write a review

$13
where to buy

REI Lightweight Polartec Power Dry MTS Long-Sleeve Crew

Base Layer Top

not yet rated
write a review

$35
where to buy

REI Lightweight MTS Polartec Power Dry Bottoms

Base Layer Bottom

not yet rated
write a review

$35
where to buy

2XU Compression Tight

Compression Piece

not yet rated
write a review

$100
where to buy

Terramar Filament Silk Pant

Base Layer Bottom

not yet rated
write a review

$26
where to buy

Helly Hansen HH Dry Stripe Crew

Base Layer Top

not yet rated
write a review

$21
where to buy

Under Armour ColdGear Core Ventilated Legging

Base Layer Bottom

not yet rated
write a review

$27
where to buy

Icebreaker Boxer Brief w/Fly

Boxers, Briefs, Bikini

not yet rated
write a review

$30 - $49
where to buy

Polarmax Double Base Layer Crew

Base Layer Top

not yet rated
write a review

$25 - $27
where to buy

Helly Hansen HH Warm Relaxed Fit Ice T

Base Layer Top

not yet rated
write a review

$50
where to buy

Arc'teryx Phase SL Boxer

Boxers, Briefs, Bikini

not yet rated
write a review

$45
where to buy

Icebreaker Relay LS Crewe

Base Layer Top

not yet rated
write a review

$80
where to buy

Patagonia Merino 2 Lightweight Bottoms

Base Layer Bottom

not yet rated
write a review

$45 - $75
where to buy

Stio Basis Zip Neck

Base Layer Top

not yet rated
write a review

$85
where to buy

 

La Sportiva Troposphere Long Sleeve

Base Layer Top

not yet rated
write a review

$59
where to buy

Helly Hansen Warm Boxer

Boxers, Briefs, Bikini

not yet rated
write a review

$31 - $44
where to buy

Burton Select Shirt

Base Layer Top

not yet rated
write a review

$56
where to buy

Columbia Baselayer Heavyweight Long Sleeve 1/2 Zip

Base Layer Top

not yet rated
write a review

$51 - $60
where to buy

Polarmax Quattro Fleece Pant

Base Layer Bottom

not yet rated
write a review

$50
where to buy

Columbia Baselayer Midweight Mock Neck Long Sleeve

Base Layer Top

not yet rated
write a review

$41 - $55
where to buy

SmartWool MerinoMax Half Zip

Base Layer Top

not yet rated
write a review

$90 - $168
where to buy

Stoic Merino Crew - Long-Sleeve

Base Layer Top

not yet rated
write a review

$38
where to buy

The North Face Stretch Softwool Pant

Base Layer Bottom

not yet rated
write a review

$50 - $89
where to buy

Komperdell BC-Flex Fleece Long Underwear Bottoms

Base Layer Bottom

not yet rated
write a review

$60
where to buy

Ibex Woolies 220 Bottom

Base Layer Bottom

not yet rated
write a review

$80
where to buy

Helly Hansen HH Dry 3/4 Pant

Base Layer Bottom

not yet rated
write a review

$31
where to buy

ExOfficio Give-N-Go Boxer

Boxers, Briefs, Bikini

not yet rated
write a review

$17 - $29
where to buy

Millet Stretch Tech Pullover

Base Layer Top

not yet rated
write a review

$49
where to buy

Mammut All-Year Pants

Base Layer Bottom

not yet rated
write a review

$33 - $60
where to buy

CEP Outdoor Compression Sock

Compression Piece

not yet rated
write a review

$48
where to buy

Ibex Woolies 220 Crew

Base Layer Top

not yet rated
write a review

$95
where to buy

Columbia Baselayer Midweight Tight

Base Layer Bottom

not yet rated
write a review

$35 - $39
where to buy

Columbia Extreme Fleece Tight

Base Layer Bottom

not yet rated
write a review

$50 - $55
where to buy

Sherpa Adventure Gear Baans Tech Quarter Zip

Base Layer Top

not yet rated
write a review

$25
where to buy

DaKine Talon Bottom

Base Layer Bottom

not yet rated
write a review

$45
where to buy

REI Midweight Polartec Power Dry Crew

Base Layer Top

not yet rated
write a review

$27
where to buy

SmartWool Lightweight Crew

Base Layer Top

not yet rated
write a review

$34 - $84
where to buy

Mammut All-Year 3/4 Pant

Base Layer Bottom

not yet rated
write a review

$30 - $32
where to buy

Mammut 3/4 Warm-Quality Bottom

Base Layer Bottom

not yet rated
write a review

$38 - $43
where to buy

Sugoi Midzero Wind Boxer

Boxers, Briefs, Bikini

not yet rated
write a review

$28
where to buy

Carhartt Flame-Resistant Work-Dry Long-Sleeve T-Shirt

Base Layer Top

not yet rated
write a review

$58 - $66
where to buy

SmartWool Midweight Pattern Crew

Base Layer Top

not yet rated
write a review

$70 - $100
where to buy

Terramar Thermawool Merino Half Zip

Base Layer Top

not yet rated
write a review

$42
where to buy

Icebreaker Everyday Half Zip

Base Layer Top

not yet rated
write a review

$49 - $70
where to buy