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Base Layer Bottoms

Shop our Base Layer Bottoms collection, designed to provide warmth and moisture-wicking performance for cold weather activities. Perfect for layering under pants, these bottoms offer comfort and insulation to keep you dry and warm.

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51 products
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51 products
FeaturedBest sellingAlphabetically, A-ZAlphabetically, Z-APrice, low to highPrice, high to lowDate, old to newDate, new to old
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Quick buy
ICEBREAKER
Merino Blend 125 ZoneKnit™ Thermal Leggings (Men's) - 0A56H5
$150.00
S M L XL
BLACK
Merino Blend 125 ZoneKnit™ Thermal Leggings (Men's) - 0A56H5
 ABYSS
Merino Blend 125 ZoneKnit™ Thermal Leggings (Men's) - 0A56H5
Quick buy
ARC'TERYX
Rho LT Bottom (Men's) - X000009418 - Past Season
$120.00
M L XL
BLACK
Rho LT Bottom (Men's) - X000009418 - Past Season
Quick buy
BULA
Rainbow Set Base Layer (Kids') - KLSRAI3
From $45.00 $65.00
Sale
XS S M L XL
MILITARY GREEN
Rainbow Set Base Layer (Kids') - KLSRAI3
 BLACK
Rainbow Set Base Layer (Kids') - KLSRAI3
 LOTUS BLACK
Rainbow Set Base Layer (Kids') - KLSRAI3
 PINK
Rainbow Set Base Layer (Kids') - KLSRAI3
+ 1 more
Quick buy
ICEBREAKER
Merino 260 Tech High Rise Thermal Leggings (Women's) - IB0A5726
$150.00
XS S M L
BLACK
Merino 260 Tech High Rise Thermal Leggings (Women's) - IB0A5726
Quick buy
SWIX
RaceX Dry Pants (Women's) - 10102-23 - Past Season
$80.00
S M L XL
BLACK
RaceX Dry Pants (Women's) - 10102-23 - Past Season
Quick buy
SWIX
RaceX Dry Pants (Men's) - 10101-23 - Past Season
$80.00
M L XL XXL
BLACK
RaceX Dry Pants (Men's) - 10101-23 - Past Season
Quick buy
THE NORTH FACE
Summit Series Pro 120 Tights (Men’s) - NF0A84PQ
$129.99
S M L XL
TNF BLACK
Summit Series Pro 120 Tights (Men’s) - NF0A84PQ
REGULAR
Quick buy
ICEBREAKER
125 ZoneKnit™ Thermal Leggings (Women's) - IB0A56H6
$110.00 $150.00
Sale
S M L XL
BLACK-JET HEATHER
125 ZoneKnit™ Thermal Leggings (Women's) - IB0A56H6
Quick buy
ICEBREAKER
125 ZoneKnit™ Thermal Leggings (Men's) - IB0A56H5
$110.00 $150.00
Sale
S M L XL
BLACK-JET HEATHER
125 ZoneKnit™ Thermal Leggings (Men's) - IB0A56H5
Quick buy
BLACK DIAMOND
Coefficient LT Pants (Men's)
$114.95
S M L XL
BLACK
Coefficient LT Pants (Men's)
 KINGFISHER
Coefficient LT Pants (Men's)
Quick buy
SMARTWOOL
Intraknit Thermal Max Merino Base Layer Bottom (Men's) - SW016824
$170.00
S M L XL XXL
BLACK
Intraknit Thermal Max Merino Base Layer Bottom (Men's) - SW016824
Quick buy
BLACK DIAMOND
Coefficient LT Pants (Women's)
$114.95
S M L
BLACK
Coefficient LT Pants (Women's)
 BLACKBERRY
Coefficient LT Pants (Women's)
Quick buy
ARC'TERYX
Rho Bottom (Women's) - X000007308
$120.00
S M L XL
BLACK
Rho Bottom (Women's) - X000007308
 STRATUS
Rho Bottom (Women's) - X000007308
Quick buy
ARC'TERYX
RHO Hybrid Bottom (Men's) - X000006209 - Past Season
$90.00 $130.00
Sale
S M L XL
BLACK
RHO Hybrid Bottom (Men's) - X000006209 - Past Season
Quick buy
SWIX
RaceX Classic Wind Pants (Men's) - 10108-23
$72.00 $90.00
Sale
M L XL
BLACK
RaceX Classic Wind Pants (Men's) - 10108-23
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 Pants (Men's) - 10118-23
$56.00 $70.00
Sale
S M L XL
DARK NAVY
RaceX Classic Pants (Men's) - 10118-23
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
RAB
Conduit Tights (Women's) - QBL-45
$95.00
8 10 12 14 16
BELUGA
Conduit Tights (Women's) - QBL-45
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 All-Season Merino Base Layer Bottom Boxed (Men's) - SW016959
From $110.00
S M L XL 2XL
BLACK
Classic All-Season Merino Base Layer Bottom Boxed (Men's) - SW016959
 IRON HEATHER
Classic All-Season Merino Base Layer Bottom Boxed (Men's) - SW016959
Quick buy
SWIX
RaceX Bodyw Pants (Men's) - 41801 - Past Season
$50.00 $70.00
Sale
S M L XL 2XL
BRIGHT WHITE
RaceX Bodyw Pants (Men's) - 41801 - Past Season
 GREY MELANGE
RaceX Bodyw Pants (Men's) - 41801 - Past Season
Quick buy
SMARTWOOL
Intraknit™ Thermal Merino Base Layer Bottom (Men's) - SW016829
$155.00
S M L XL 2XL
BLACK-WHITE
Intraknit™ Thermal Merino Base Layer Bottom (Men's) - SW016829
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
SMARTWOOL
Intraknit™ Thermal Merino Base Layer 3/4 Bottom (Men's) - SW016825
$140.00
M L XL
BLACK-WHITE
Intraknit™ Thermal Merino Base Layer 3/4 Bottom (Men's) - SW016825
Quick buy
HELLY HANSEN
Lifa Merino Set (Junior) - 48659 - Past Season
$65.00 $129.99
Sale
8 10 12 14
GREY MELANGE
Lifa Merino Set (Junior) - 48659 - Past Season
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer 3/4 Bottom Boxed (Men's) - SW016366
$125.00
M L XL 2XL
BLACK
Classic Thermal Merino Base Layer 3/4 Bottom Boxed (Men's) - SW016366
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer 3/4 Bottom Boxed (Women's) - SW018808
$110.00
S M L
BLACK
Classic Thermal Merino Base Layer 3/4 Bottom Boxed (Women's) - SW018808
Quick buy
HELLY HANSEN
LIFA® Merino Base Layer Set (Kids) - 48610 - Past Season
$50.00 $89.99
Sale
3 4 5 6 7 8 9
WISTERIA PURPLE
LIFA® Merino Base Layer Set (Kids) - 48610 - Past Season
 NAVY
LIFA® Merino Base Layer Set (Kids) - 48610 - Past Season
 GREY MELANGE
LIFA® Merino Base Layer Set (Kids) - 48610 - Past Season
 PINK ASH
LIFA® Merino Base Layer Set (Kids) - 48610 - Past Season
 POWDER GREEN
LIFA® Merino Base Layer Set (Kids) - 48610 - Past Season
+ 3 more
Quick buy
ARC'TERYX
Rho LT Bottom (Men's) - X000004864 - Past Season
$80.00 $120.00
Sale
S M L XL 2XL
PYTHEAS
Rho LT Bottom (Men's) - X000004864 - Past Season
 BLACK
Rho LT Bottom (Men's) - X000004864 - Past Season
Quick buy
RAB
Power Stretch Pro Pant (Women's) - QFE-41 - Past Season
$90.00 $150.00
Sale
8 10 12 14 16
BLACK
Power Stretch Pro Pant (Women's) - QFE-41 - Past Season
Quick buy
THE NORTH FACE
Warm Winter Tight (Girls') - NF0A5GCR - Past Season
$35.00 $69.99
Sale
XS S M L
VANADIS GREY
Warm Winter Tight (Girls') - NF0A5GCR - Past Season
Quick buy
ICEBREAKER
Merino 260 Tech Thermal Leggings (Women's) - IB104392
$150.00
S M L XL
BLACK
Merino 260 Tech Thermal Leggings (Women's) - IB104392
Quick buy
ICEBREAKER
Merino 175 Everyday Thermal Leggings (Women's) - IB104476
$100.00
XS S M L XL
BLACK
Merino 175 Everyday Thermal Leggings (Women's) - IB104476
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Bottom Boxed (Men's) - SW016362
$140.00
S M L XL 2XL
BLACK
Classic Thermal Merino Base Layer Bottom Boxed (Men's) - SW016362
 CHARCOAL HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Men's) - SW016362
 DEEP NAVY
Classic Thermal Merino Base Layer Bottom Boxed (Men's) - SW016362
 WINTER MOSS HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Men's) - SW016362
+ 1 more
Quick buy
RAB
Power Stretch Pro Pants (Men's) - QFE-40 - Past Season
$120.00 $150.00
Sale
S M L XL 2XL
BLACK
Power Stretch Pro Pants (Men's) - QFE-40 - Past Season
Quick buy
HELLY HANSEN
LIFA® Merino Midweight Base Layer Set (Juniors') - 49403
From $80.00 $140.00
Sale
8 10 12 14 16
DEEP DIVE
LIFA® Merino Midweight Base Layer Set (Juniors') - 49403
 ULTRA BLUE
LIFA® Merino Midweight Base Layer Set (Juniors') - 49403
 GREY
LIFA® Merino Midweight Base Layer Set (Juniors') - 49403
 NAVY
LIFA® Merino Midweight Base Layer Set (Juniors') - 49403
+ 1 more
Quick buy
ICEBREAKER
Merino 200 Oasis Leggings with Fly (Men's) - IB104370
$130.00
S M L XL 2XL 3XL
BLACK
Merino 200 Oasis Leggings with Fly (Men's) - IB104370
 MIDNIGHT NAVY
Merino 200 Oasis Leggings with Fly (Men's) - IB104370
Quick buy
ICEBREAKER
Merino 200 Oasis Thermal Leggings (Women's) - IB104383
$130.00
XS S M L XL
GRITSTONE HEATHER
Merino 200 Oasis Thermal Leggings (Women's) - IB104383
 BLACK
Merino 200 Oasis Thermal Leggings (Women's) - IB104383
Quick buy
SUGOI
RC Pro Liner (Women's) - U190010F - Past Season
$60.00 $103.99
Sale
XS S M L XL
BLACK
RC Pro Liner (Women's) - U190010F - Past Season
Quick buy
SWIX
RaceX BodyW Pants Wind (Men's) - 41422 - Past Season
$60.00 $80.00
Sale
S M L XL
BLACK
RaceX BodyW Pants Wind (Men's) - 41422 - Past Season
Quick buy
SWIX
RaceX Bodywear Pants Wind (Women's) - 41427 - Past Season
$40.00 $65.00
Sale
S M L
BLACK
RaceX Bodywear Pants Wind (Women's) - 41427 - Past Season
Quick buy
OUTDOOR RESEARCH
Vigor Bottoms (Women's) - 277606 - Past Season
From $50.00 $104.95
Sale
S M L XL
BLACK
Vigor Bottoms (Women's) - 277606 - Past Season
Quick buy
OUTDOOR RESEARCH
Vigor Bottoms (Men's) - 277597 - Past Season
$50.00 $104.95
Sale
S M 2XL
BLACK
Vigor Bottoms (Men's) - 277597 - Past Season
Quick buy
SUGOI
RC Pro Liner (Men's) - U190010 - Past Season
$65.00 $109.99
Sale
S M L XL XXL
BLACK
RC Pro Liner (Men's) - U190010 - Past Season
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
From $80.00 $140.00
Sale
XS S M L XL
BLACK
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 BLACK DIGI SNOW
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 LIGHT GRAY FOGGY PINES
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 TWILIGHT FOGGY PINES
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 WINTER SKY-CHALK VIOLET HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 PURPLE IRIS HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 CURRANT-GARDEN PINK
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 ULTRA VIOLET
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 CHARCOAL HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 BLACK DOT
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 VIOLET FLIRT WITH ME
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 TWILIGHT BLUE HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 LIGHT GREY HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
 BLACK CHERRY HEATHER
Classic Thermal Merino Base Layer Bottom Boxed (Women's) - SW018809
+ 11 more
Quick buy
ICEBREAKER
Merino 260 Tech Leggings w/ Fly (Men's) - IB104374
$150.00
Sold out
XS S M L XL
BLACK
Merino 260 Tech Leggings w/ Fly (Men's) - IB104374
Quick buy
SMARTWOOL
Classic All-Season Merino Base Layer Bottom Boxed Plus (Women's) - SW016911
$110.00
Sold out
1X 2X 3X
BLACK
Classic All-Season Merino Base Layer Bottom Boxed Plus (Women's) - SW016911