Women's Base Layers & Underwear.

Filter
90 products
FeaturedBest sellingAlphabetically, A-ZAlphabetically, Z-APrice, low to highPrice, high to lowDate, old to newDate, new to old
Filters
Out of stock
Gender
Sizes
Brand
Activity
Category
Subcategory
Price
$
$
Sort by
Quick buy
EXOFFICIO
Everyday Bralette (Women's)
$50.00
XS S M L XL
BLACK
Everyday Bralette (Women's)
 JADEITE
Everyday Bralette (Women's)
Quick buy
EXOFFICIO
Everyday Hipster (Women's)
$30.00
XS S M L XL
JADEITE
Everyday Hipster (Women's)
Quick buy
EXOFFICIO
Give-N-Go® 2.0 Sport Mesh Hipster (Women's)
$33.00
S M L XL
LAGOON CAMO DOT
Give-N-Go® 2.0 Sport Mesh Hipster (Women's)
 BLACK
Give-N-Go® 2.0 Sport Mesh Hipster (Women's)
Quick buy
ICEBREAKER
125 ZoneKnit™ Merino Blend Racerback Bra (Women's) - IB0A56Z5 - Past Season
From $60.00 $100.00
Sale
S M L
BLACK
125 ZoneKnit™ Merino Blend Racerback Bra (Women's) - IB0A56Z5 - Past Season
 DAWN
125 ZoneKnit™ Merino Blend Racerback Bra (Women's) - IB0A56Z5 - Past Season
Quick buy
ICEBREAKER
125 ZoneKnit™ Merino Blend Energy Wind Cropped Bra-Tank (Women's) - IB0A56XT - Past Season
$75.00 $115.00
Sale
S M L XL
BLACK
125 ZoneKnit™ Merino Blend Energy Wind Cropped Bra-Tank (Women's) - IB0A56XT - Past Season
Quick buy
SMARTWOOL
Everyday Merino Thong - Boxed (Women's) - SW002411
$45.00
XS S M L XL
BLACK
Everyday Merino Thong - Boxed (Women's) - SW002411
 ALMOND HEATHER
Everyday Merino Thong - Boxed (Women's) - SW002411
Quick buy
SMARTWOOL
Active Crop Bra (Women's) - SW017281 - Past Season
$60.00 $90.00
Sale
XS S M L XL
BLACK
Active Crop Bra (Women's) - SW017281 - Past Season
 WINTER SKY
Active Crop Bra (Women's) - SW017281 - Past Season
Quick buy
PATAGONIA
Maipo Mid-Impact Bra (Women's) - 32120
$79.00
S M L
NOUVEAU GREEN
Maipo Mid-Impact Bra (Women's) - 32120
Quick buy
EXOFFICIO
Give-N-Go® 2.0 Bralette (Women's)
$33.00
S M L
BLACK
Give-N-Go® 2.0 Bralette (Women's)
 BUFF
Give-N-Go® 2.0 Bralette (Women's)
Quick buy
EXOFFICIO
Give-N-Go® 2.0 Sport Mesh Thong (Women's)
$30.00
S M L
BLACK
Give-N-Go® 2.0 Sport Mesh Thong (Women's)
 BUFF
Give-N-Go® 2.0 Sport Mesh Thong (Women's)
 LAGOON CAMO DOT
Give-N-Go® 2.0 Sport Mesh Thong (Women's)
Quick buy
EXOFFICIO
Give-N-Go® 2.0 Full Cut Brief (Women's)
$28.00
S M L XL
BLACK
Give-N-Go® 2.0 Full Cut Brief (Women's)
 BUFF
Give-N-Go® 2.0 Full Cut Brief (Women's)
 INK
Give-N-Go® 2.0 Full Cut Brief (Women's)
Quick buy
SMARTWOOL
Everyday Merino Bikini Boxed (Women's) - SW002410
$45.00
XS S M L XL
BLACK
Everyday Merino Bikini Boxed (Women's) - SW002410
Quick buy
EXOFFICIO
Everyday Bikini Brief (Women's)
$30.00
S M L
BLACK
Everyday Bikini Brief (Women's)
 BUFF
Everyday Bikini Brief (Women's)
Quick buy
EXOFFICIO
Give-N-Go 2.0 Bikini Brief (Women's)
$24.00
S M L XL
BLACK
Give-N-Go 2.0 Bikini Brief (Women's)
 GRAPE
Give-N-Go 2.0 Bikini Brief (Women's)
 TEABERRY HIBISCUS
Give-N-Go 2.0 Bikini Brief (Women's)
 BUFF
Give-N-Go 2.0 Bikini Brief (Women's)
+ 1 more
Quick buy
BONNETIER
Merino Long Sleeves (Women's)
$144.00
S M L
BLACK
Merino Long Sleeves (Women's)
 PURPLE BLUE
Merino Long Sleeves (Women's)
Quick buy
SWIX
RaceX Dry Half Zip (Women's) - 10100-23 - Past Season
$70.00 $90.00
Sale
S M L
DUSTY PURPLE - LIGHT PURPLE
RaceX Dry Half Zip (Women's) - 10100-23 - Past Season
Quick buy
SWIX
RaceX Classic Wind Pants (Women's) - 10107-23
$72.00 $90.00
Sale
S M L
BLACK
RaceX Classic Wind Pants (Women's) - 10107-23
Quick buy
SWIX
RaceX Classic Pants (Women's) - 10113-23
$56.00 $70.00
Sale
S M L XL
DARK NAVY
RaceX Classic Pants (Women's) - 10113-23
Quick buy
SWIX
RaceX Classic Half Zip (Women's) - 10111-23
$80.00
XS S M L XL
DARK NAVY - LAKE BLUE
RaceX Classic Half Zip (Women's) - 10111-23
 DUSTY PURPLE - LIGHT PURPLE
RaceX Classic Half Zip (Women's) - 10111-23
Quick buy
SWIX
RaceX Classic Long Sleeve (Women's) - 10110-23
$70.00
XS S M L
OLIVE-BRIGHT WHITE
RaceX Classic Long Sleeve (Women's) - 10110-23
 COBALT
RaceX Classic Long Sleeve (Women's) - 10110-23
Quick buy
SMARTWOOL
Classic All-Season Merino Base Layer Bottom Boxed (Women's) - SW016909
$115.00
XS S M L XL
BLACK
Classic All-Season Merino Base Layer Bottom Boxed (Women's) - SW016909
 TWILIGHT BLUE
Classic All-Season Merino Base Layer Bottom Boxed (Women's) - SW016909
Quick buy
ARC'TERYX
Rho Heavyweight Bottom (Women's) - X000006286 - Past Season
$170.00
XS S M L XL
BLACK
Rho Heavyweight Bottom (Women's) - X000006286 - Past Season

1 review
Quick buy
SMARTWOOL
Intraknit Thermal Merino Base Layer Pattern Crew (Women's) - SW016412
$160.00
XS S M L
EGGPLANT-BLACK
Intraknit Thermal Merino Base Layer Pattern Crew (Women's) - SW016412
 SERENE BLUE-WHITE
Intraknit Thermal Merino Base Layer Pattern Crew (Women's) - SW016412
 CASCADE GREEN-APRICOT
Intraknit Thermal Merino Base Layer Pattern Crew (Women's) - SW016412
 BLACK
Intraknit Thermal Merino Base Layer Pattern Crew (Women's) - SW016412
 PECAN BROWN - DEEP NAVY
Intraknit Thermal Merino Base Layer Pattern Crew (Women's) - SW016412
+ 2 more
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Crew Plus Boxed (Women's) - SW016803
From $90.00 $140.00
Sale
1X 2X 3X 4X
CHARCOAL HEATHER
Classic Thermal Merino Base Layer Crew Plus Boxed (Women's) - SW016803
 BLACK DIGI SNOW
Classic Thermal Merino Base Layer Crew Plus Boxed (Women's) - SW016803
Quick buy
RAB
Conduit Tights (Women's) - QBL-45
$95.00
8 10 12 14 16
BELUGA
Conduit Tights (Women's) - QBL-45
Quick buy
RAB
Conduit Hoody (Women's) - QBL-43
From $70.00 $115.00
Sale
8 10 12 14 16
BELUGA
Conduit Hoody (Women's) - QBL-43
 PATROIT BLUE
Conduit Hoody (Women's) - QBL-43
Quick buy
RAB
Conduit Pull-On (Women's) - QBL-39 - Past Season
$60.00 $105.00
Sale
8 10 12 14
ULTRAMARINE
Conduit Pull-On (Women's) - QBL-39 - Past Season
 DEEP HEATHER
Conduit Pull-On (Women's) - QBL-39 - Past Season
Quick buy
PATAGONIA
Active Hipster (Women's) - 32410 - Past Season
$20.00 $29.00
Sale
XS S M L XL
MEINERS STRIPE: LAGO BLUE
Active Hipster (Women's) - 32410 - Past Season
 BLACK
Active Hipster (Women's) - 32410 - Past Season
Quick buy
SMARTWOOL
Intraknit Crop Bra (Women's) - SW016848 - Past Season
$50.00 $90.00
Sale
XS S M L
BLACK HEATHER
Intraknit Crop Bra (Women's) - SW016848 - Past Season
 SANDSTONE
Intraknit Crop Bra (Women's) - SW016848 - Past Season
Quick buy
SMARTWOOL
Classic All-Season Merino Base Layer Long Sleeve Boxed Plus (Women's) - SW016915
$115.00
1X 2X 3X
TWILIGHT BLUE
Classic All-Season Merino Base Layer Long Sleeve Boxed Plus (Women's) - SW016915
 BLACK
Classic All-Season Merino Base Layer Long Sleeve Boxed Plus (Women's) - SW016915
Quick buy
ICEBREAKER
Merino Siren Padded Bra (Women's) - IB104708
$60.00
S M L
BLACK
Merino Siren Padded Bra (Women's) - IB104708
 LODEN
Merino Siren Padded Bra (Women's) - IB104708
Quick buy
ICEBREAKER
Merino Siren Bra Cami Singlet (Women's) - IB0A56BL
$90.00
S M L
BLACK
Merino Siren Bra Cami Singlet (Women's) - IB0A56BL
Quick buy
ARC'TERYX
Essent Bra (Women's) - X000007307 - Past Season
$50.00 $70.00
Sale
4 6 8 10 12
BLACK
Essent Bra (Women's) - X000007307 - Past Season
 SERENE
Essent Bra (Women's) - X000007307 - Past Season
 SOLASTA
Essent Bra (Women's) - X000007307 - Past Season
Quick buy
ARC'TERYX
Soria Long Line Bra (Women's) - X000007279 - Past Season
$50.00 $80.00
Sale
6 8 10 12
BLACK
Soria Long Line Bra (Women's) - X000007279 - Past Season
 FORAGE
Soria Long Line Bra (Women's) - X000007279 - Past Season
Quick buy
SMARTWOOL
Intraknit™ Strappy Bra (Women's) - SW016846 - Past Season
$45.00 $85.00
Sale
XS S M L
BLACK HEATHER
Intraknit™ Strappy Bra (Women's) - SW016846 - Past Season
 SANDSTONE
Intraknit™ Strappy Bra (Women's) - SW016846 - Past Season
 LEAD
Intraknit™ Strappy Bra (Women's) - SW016846 - Past Season
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Pattern 1/4 Zip Plus Boxed (Women's) - SW016806 - Past Season
$90.00 $150.00
Sale
1X 2X 3X
BLACK DOT
Classic Thermal Merino Base Layer Pattern 1/4 Zip Plus Boxed (Women's) - SW016806 - Past Season
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Bottom Plus Boxed (Women's)
From $90.00 $140.00
Sale
1X 2X 3X 4X
BLACK
Classic Thermal Merino Base Layer Bottom Plus Boxed (Women's)
 BLACK CHERRY HEATHER
Classic Thermal Merino Base Layer Bottom Plus Boxed (Women's)
 BLUEBERRY HILL HEATH
Classic Thermal Merino Base Layer Bottom Plus Boxed (Women's)
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Pattern Crew Plus Boxed (Women's) - SW016804 - Past Season
$80.00 $140.00
Sale
1X 2X 3X
BLACK DOT
Classic Thermal Merino Base Layer Pattern Crew Plus Boxed (Women's) - SW016804 - Past Season
Quick buy
SMARTWOOL
Merino Bikini Boxed (Women's) - SW016925
$52.00
XS S M L XL
BLACK
Merino Bikini Boxed (Women's) - SW016925
 TWILIGHT BLUE
Merino Bikini Boxed (Women's) - SW016925
Quick buy
SMARTWOOL
Intraknit Racerback Bra (Women's) - SW016847 - Past Season
$40.00 $80.00
Sale
XS S M L XL
BLACK HEATHER
Intraknit Racerback Bra (Women's) - SW016847 - Past Season
 ALMOND
Intraknit Racerback Bra (Women's) - SW016847 - Past Season
 ULTRA VIOLET
Intraknit Racerback Bra (Women's) - SW016847 - Past Season
 SANDSTONE
Intraknit Racerback Bra (Women's) - SW016847 - Past Season
 LEAD
Intraknit Racerback Bra (Women's) - SW016847 - Past Season
+ 2 more
Quick buy
SMARTWOOL
Classic All-Season Merino Base Layer Long Sleeve Boxed (Women's) - SW016913
$115.00
XS S M L XL
BLACK
Classic All-Season Merino Base Layer Long Sleeve Boxed (Women's) - SW016913
 TWILIGHT BLUE
Classic All-Season Merino Base Layer Long Sleeve Boxed (Women's) - SW016913
 EGGPLANT
Classic All-Season Merino Base Layer Long Sleeve Boxed (Women's) - SW016913
Quick buy
SWIX
RaceX Bodywear 1/2 Zip (Women's) - 40826 - Past Season
$50.00 $75.00
Sale
M L XL
BLUE SEA
RaceX Bodywear 1/2 Zip (Women's) - 40826 - Past Season
 DARK NAVY
RaceX Bodywear 1/2 Zip (Women's) - 40826 - Past Season
Quick buy
SMARTWOOL
Seamless Bikini (Women's) - SW000848 - Past Season
$20.00 $45.00
Sale
XS S M L XL
BLACK
Seamless Bikini (Women's) - SW000848 - Past Season
Quick buy
BONNETIER
Basic Luxe (Women's)
$135.00
XS S M L
CHERRY-FERN
Basic Luxe (Women's)
 CHERRY-BEAR
Basic Luxe (Women's)
 SUN-MOUNTAINS
Basic Luxe (Women's)
 BURNT ORANGE-PINE
Basic Luxe (Women's)
+ 1 more
Quick buy
ICEBREAKER
260 Tech LS Crewe (Women's) - IB104387
$150.00
XS S M L XL
BLACK
260 Tech LS Crewe (Women's) - IB104387
Quick buy
VUORI
Stride Bra (Women's) - VW1036 - Past Season
$60.00 $80.00
Sale
S M L XL
DARK LUNA
Stride Bra (Women's) - VW1036 - Past Season
Quick buy
SMARTWOOL
Intraknit™ Thermal Merino Base Layer Crew (Women's) - SW019284
From $110.00 $160.00
Sale
XS S M L XL
EMERALD-WHITE
Intraknit™ Thermal Merino Base Layer Crew (Women's) - SW019284
 BLACK CHERRY - VIOLET
Intraknit™ Thermal Merino Base Layer Crew (Women's) - SW019284
 BLACK - WHITE
Intraknit™ Thermal Merino Base Layer Crew (Women's) - SW019284
 NIVAL BLUE-POOL BLUE
Intraknit™ Thermal Merino Base Layer Crew (Women's) - SW019284
 BLACK CHERRY
Intraknit™ Thermal Merino Base Layer Crew (Women's) - SW019284
+ 2 more
Quick buy
SMARTWOOL
Intraknit™ Thermal Merino Base Layer Bottom (Women's) - SW016828
$150.00
XS S M L XL
DEEP NAVY-PEWTER BLUE
Intraknit™ Thermal Merino Base Layer Bottom (Women's) - SW016828
 EMERALD-WHITE
Intraknit™ Thermal Merino Base Layer Bottom (Women's) - SW016828
 BLACK CHERRY-VIOLET
Intraknit™ Thermal Merino Base Layer Bottom (Women's) - SW016828
 BLACK-WHITE
Intraknit™ Thermal Merino Base Layer Bottom (Women's) - SW016828
 BLUEBERRY HILL
Intraknit™ Thermal Merino Base Layer Bottom (Women's) - SW016828
+ 2 more
Quick buy
ICEBREAKER
Merino Siren Tank Top (Women's) - IB103213
$85.00
XS S M L XL
BLACK
Merino Siren Tank Top (Women's) - IB103213
 UNDYED
Merino Siren Tank Top (Women's) - IB103213
Quick buy
SMARTWOOL
Merino 150 Lace Bikini (Women's) - SW016243 - Past Season
$20.00 $34.99
Sale
XS S M L
BLACK
Merino 150 Lace Bikini (Women's) - SW016243 - Past Season