Women's Base Layers and Underwear

Showing 1-50 of 865 items

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Tops (402)
Bottoms (231)
Base Layer Suits (10)
Boxers, Briefs, Bikinis (85)
Sports Bras (116)
Compression (16)

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Patagonia (57)
Icebreaker (76)
Arc'teryx (28)
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Polarmax (17)

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Patagonia Capilene 2 Lightweight Zip-Neck

Base Layer Top

 
based on 3 reviews

$26 - $49
where to buy

Icebreaker Bodyfit 260 Olympia Zip

Base Layer Top

 
based on 2 reviews

$72
where to buy

Arc'teryx Rho LT Zip

Base Layer Top

 
based on 1 review

$70 - $118
where to buy

Marmot Lightweight Crew LS

Base Layer Top

 
based on 1 review

$27 - $44
where to buy

Marmot Midweight Bottom

Base Layer Bottom

 
based on 2 reviews

$25 - $50
where to buy

Patagonia Merino 2 Lightweight Crew

Base Layer Top

 
based on 2 reviews

$45 - $75
where to buy

Patagonia Capilene 4 Expedition Weight Zip-Neck

Base Layer Top

 
based on 1 review

$40 - $99
where to buy

Under Armour ColdGear Fitted Legging

Base Layer Bottom

 
based on 2 reviews

$50
where to buy

SmartWool Microweight Tee

Base Layer Top

 
based on 3 reviews

$39 - $69
where to buy

Stoic Merino Bliss Shirt - Long-Sleeve

Base Layer Top

 
based on 2 reviews

$35
where to buy

Icebreaker 260 Midweight Tech Top

Base Layer Top

 
based on 1 review

$45 - $110
where to buy

Stoic Merino 200 1-Z Suit

One-Piece Base Layer

 
based on 1 review

$119
where to buy

Patagonia Capilene 2 Lightweight Crew

Base Layer Top

 
based on 1 review

$23 - $45
where to buy

Ibex Balance Briefs

Base Layer Bottom

 
based on 1 review

$27 - $30
where to buy

Mountain Hardwear Power Stretch Zip T

Base Layer Top

 
based on 1 review

$39 - $99
where to buy

Icebreaker GT 260 Rapid Legging

Base Layer Bottom

 
based on 1 review

$59
where to buy

Polarmax Tech Silk Crew

Base Layer Top

 
based on 1 review

$20
where to buy

Patagonia Capilene 1 Silkweight Scoop

Base Layer Top

 
based on 1 review

$23 - $45
where to buy

SmartWool Midweight Bottom

Base Layer Bottom

 
based on 1 review

$80 - $95
where to buy

Icebreaker Siren Bra

Sports Bra

 
based on 1 review

$45
where to buy

Terramar Hot Totties Grid Fleece Tights

Base Layer Bottom

 
based on 1 review

$30 - $41
where to buy

SmartWool Midweight Zip T

Base Layer Top

 
based on 1 review

$51 - $105
where to buy

Marmot Lightweight Bottom

Base Layer Bottom

 
based on 1 review

$23 - $44
where to buy

SmartWool Midweight Hoody

Base Layer Top

 
based on 1 review

$70 - $124
where to buy

Stoic Alpine Merino 150 Crew - Long-Sleeve

Base Layer Top

 
based on 1 review

$30 - $74
where to buy

Marmot Midweight Crew LS

Base Layer Top

 
based on 1 review

$22 - $55
where to buy

Patagonia Capilene 3 Midweight Bottoms

Base Layer Bottom

 
based on 1 review

$27 - $49
where to buy

SmartWool Lightweight Zip T

Base Layer Top

 
based on 2 reviews

$57 - $95
where to buy

Icebreaker 260 Midweight LS Crewe

Base Layer Top

 
based on 3 reviews

$54 - $90
where to buy

Eddie Bauer First Ascent Midweight Crewneck Baselayer

Base Layer Top

 
based on 1 review

$45
where to buy

Eddie Bauer First Ascent Midweight Baselayer Pants

Base Layer Bottom

 
based on 1 review

$50
where to buy

Icebreaker 150 Ultralite LS Atlas

Base Layer Top

 
based on 1 review

$42 - $48
where to buy

SmartWool Microweight Bottom

Base Layer Bottom

 
based on 1 review

$35 - $75
where to buy

Patagonia Capilene 2 Lightweight T-Shirt

Base Layer Top

 
based on 1 review

$23 - $39
where to buy

SmartWool Microweight Crew

Base Layer Top

 
based on 1 review

$37 - $75
where to buy

SmartWool Midweight Funnel Zip

Base Layer Top

 
based on 1 review

$69 - $115
where to buy

Patagonia Merino 3 Midweight Crew

Base Layer Top

 
based on 1 review

$45 - $90
where to buy

Icebreaker GT 200 L/S Chase Zip

Base Layer Top

 
based on 1 review

$69 - $76
where to buy

Marmot Midweight Zip LS

Base Layer Top

 
based on 2 reviews

$26 - $64
where to buy

ExOfficio Give-N-Go Lacy Full Cut Brief

Boxers, Briefs, Bikini

 
based on 1 review

$11 - $21
where to buy

Ibex Zepher Zip T-Neck

Base Layer Top

 
based on 1 review

$80 - $81
where to buy

Icebreaker 200 Lightweight Legging

Base Layer Bottom

 
based on 1 review

$48 - $89
where to buy

2XU Elite Compression Tight

Compression Piece

 
based on 1 review

$140
where to buy

Terramar Hot Totties Fleece Heavy Footy Performance Leggings

Base Layer Bottom

 
based on 1 review

$10
where to buy

Icebreaker BodyFit 200 Oasis Printed

Base Layer Top

not yet rated
write a review

$56 - $62
where to buy

SmartWool Microweight Hiphugger

Boxers, Briefs, Bikini

not yet rated
write a review

$21 - $29
where to buy

Helly Hansen HH Dry 2-Pack

not yet rated
write a review

$80
where to buy

Terramar Thermawool Pant

Base Layer Bottom

not yet rated
write a review

$32
where to buy

REI Midweight Space Dye Tights

Base Layer Bottom

not yet rated
write a review

$47
where to buy

Polarmax Acclimate Crew

Base Layer Top

not yet rated
write a review

$20
where to buy