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Base Layer Tops

Discover our Base Layer Tops collection, designed to provide essential comfort and moisture-wicking performance for any outdoor adventure. Ideal for layering under jackets or on their own, our tops keep you warm and dry in all conditions. Find your perfect base layer.

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Quick buy
ICEBREAKER
Merino 260 Tech Long Sleeve Half Zip Thermal Top (Women's) - IBB04390
$160.00
S M L XL
BLACK
Merino 260 Tech Long Sleeve Half Zip Thermal Top (Women's) - IBB04390
Quick buy
ICEBREAKER
Merino 260 Tech Long Sleeve Half Zip Thermal Top (Men's) - IBB04372
$160.00
S M L XL
BLACK
Merino 260 Tech Long Sleeve Half Zip Thermal Top (Men's) - IBB04372
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer 1/4 Zip Plus Boxed (Women's) - SW002831
$150.00
1X 2X 3X 4X
BLACK DIGI SNOW
Classic Thermal Merino Base Layer 1/4 Zip Plus Boxed (Women's) - SW002831
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Hoodie Boxed (Men's) - SW016360
$180.00
S M L XL
BLACK RETRO LINE
Classic Thermal Merino Base Layer Hoodie Boxed (Men's) - SW016360
 NIVAL BLUE-DEEP NAVY
Classic Thermal Merino Base Layer Hoodie Boxed (Men's) - SW016360
Quick buy
SMARTWOOL
Classic All-Season Merino Base Layer 1/4 Zip Boxed (Men's) - SW002820
$120.00
M L XL XXL
BLACK
Classic All-Season Merino Base Layer 1/4 Zip Boxed (Men's) - SW002820
 IRON HEATHER
Classic All-Season Merino Base Layer 1/4 Zip Boxed (Men's) - SW002820
Quick buy
BULA
Rainbow Set Base Layer (Kids')
$65.00
XS S M L XL
MILITARY GREEN
Rainbow Set Base Layer (Kids')
 BLACK
Rainbow Set Base Layer (Kids')
 LOTUS BLACK
Rainbow Set Base Layer (Kids')
 PINK
Rainbow Set Base Layer (Kids')
+ 1 more
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Colorblock 1/4 Zip Boxed (Women's) - SW002833
$150.00
S M L
CURRANT-GARDEN PINK
Classic Thermal Merino Base Layer Colorblock 1/4 Zip Boxed (Women's) - SW002833
 BLACK-CHARCOAL HEATHER
Classic Thermal Merino Base Layer Colorblock 1/4 Zip Boxed (Women's) - SW002833
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer 1/4 Zip Boxed - SW002822
$150.00
S M L XL XXL
NORTH WOODS FOGGY PINES
Classic Thermal Merino Base Layer 1/4 Zip Boxed - SW002822
 CHARCOAL-CURRANT
Classic Thermal Merino Base Layer 1/4 Zip Boxed - SW002822
 BLACK
Classic Thermal Merino Base Layer 1/4 Zip Boxed - SW002822
 DEEP NAVY
Classic Thermal Merino Base Layer 1/4 Zip Boxed - SW002822
+ 1 more
Quick buy
SMARTWOOL
Classic Thermal Merino Base Layer Colorblock Crew Boxed (Men's) - SW002570
$140.00
S M L XL XXL
CHARCOAL HEATHER-BLACK
Classic Thermal Merino Base Layer Colorblock Crew Boxed (Men's) - SW002570
Quick buy
THE NORTH FACE
Summit Series Pro 120 Crew (Men's) - NF0A87ZT
$129.99
S M L XL XXL
TNF BLACK
Summit Series Pro 120 Crew (Men's) - NF0A87ZT
Quick buy
THE NORTH FACE
Summit Series FUTUREFLEECE™ LT ½-Zip (Men’s) - NF0A5J8R
$184.99
S M L XL
TNF BLACK-NPF
Summit Series FUTUREFLEECE™ LT ½-Zip (Men’s) - NF0A5J8R
Quick buy
ICEBREAKER
Merino 200 ZoneKnit™ Long Sleeve Half Zip Thermal Top (Women's) - IBBA56HC - Past Season
$130.00 $190.00
Sale
S M L XL
JET HEATHER-BLACK
Merino 200 ZoneKnit™ Long Sleeve Half Zip Thermal Top (Women's) - IBBA56HC - Past Season
 BAJA
Merino 200 ZoneKnit™ Long Sleeve Half Zip Thermal Top (Women's) - IBBA56HC - Past Season
Quick buy
ICEBREAKER
Merino 200 ZoneKnit™ Long Sleeve Half Zip Thermal Top (Men's) - IBBA56H9 - Past Season
$130.00 $190.00
Sale
M L XL
BRILLIANT-BAJA
Merino 200 ZoneKnit™ Long Sleeve Half Zip Thermal Top (Men's) - IBBA56H9 - Past Season
 PORT-BLAZE
Merino 200 ZoneKnit™ Long Sleeve Half Zip Thermal Top (Men's) - IBBA56H9 - Past Season
Quick buy
ICEBREAKER
Merino 200 Oasis Long Sleeve Half Zip Thermal Top (Women's) - IBB04380
$140.00
M L XL
BLACK
Merino 200 Oasis Long Sleeve Half Zip Thermal Top (Women's) - IBB04380
Quick buy
ICEBREAKER
Merino 200 Oasis Long Sleeve Half Zip Thermal Top (Men's) - IBB04367
$140.00
M L XL XXL
MIDNIGHT NAVY
Merino 200 Oasis Long Sleeve Half Zip Thermal Top (Men's) - IBB04367
 BLACK
Merino 200 Oasis Long Sleeve Half Zip Thermal Top (Men's) - IBB04367
 LODEN
Merino 200 Oasis Long Sleeve Half Zip Thermal Top (Men's) - IBB04367
Quick buy
ICEBREAKER
Merino 200 Oasis Long Sleeve V Neck Thermal Top (Women's) - IB104379 - Past Season
$80.00 $130.00
Sale
S M L XL
BLACK
Merino 200 Oasis Long Sleeve V Neck Thermal Top (Women's) - IB104379 - Past Season
Quick buy
ICEBREAKER
Merino 200 Oasis Long Sleeve Crewe Thermal Top Ruapehu Round (Men's) - IB0A572O - Past Season
$90.00 $140.00
Sale
S M L
BRILLIANT
Merino 200 Oasis Long Sleeve Crewe Thermal Top Ruapehu Round (Men's) - IB0A572O - Past Season
Quick buy
ICEBREAKER
Merino 200 Oasis Long Sleeve Crewe Thermal Top Remarkables (Men's) - IB0A56QU - Past Season
$90.00 $140.00
Sale
S M L XL
BLACK
Merino 200 Oasis Long Sleeve Crewe Thermal Top Remarkables (Men's) - IB0A56QU - Past Season
Quick buy
ICEBREAKER
Merino 260 Tech Long Sleeve Turtleneck Thermal Top (Men's) - IB0A56IE
$160.00
S M L XL
BLACK
Merino 260 Tech Long Sleeve Turtleneck Thermal Top (Men's) - IB0A56IE
Quick buy
SMARTWOOL
Intraknit Thermal Merino Base Layer Colorblock 1/4 Zip (Women's) - SW002837
$170.00
XS S M L XL
DEEP NAVY
Intraknit Thermal Merino Base Layer Colorblock 1/4 Zip (Women's) - SW002837
 BLACK
Intraknit Thermal Merino Base Layer Colorblock 1/4 Zip (Women's) - SW002837
Quick buy
SMARTWOOL
Intraknit Thermal Max Merino Base Layer 1/4 Zip (Women's) - SW002835
$190.00
S M L
BLACK
Intraknit Thermal Max Merino Base Layer 1/4 Zip (Women's) - SW002835
Quick buy
ARC'TERYX
Rho LT Zip Neck (Men's) - X000009425
$140.00
M L XL XXL
BLACK SAPPHIRE
Rho LT Zip Neck (Men's) - X000009425
Quick buy
ARC'TERYX
Rho Zip Neck (Women's) - X000007336
$140.00
S M L XL
BLACK
Rho Zip Neck (Women's) - X000007336
 STRATUS
Rho Zip Neck (Women's) - X000007336
Quick buy
ICEBREAKER
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Women's) - IB0A56H4 - Past Season
$110.00 $150.00
Sale
S M L XL
JET HEATHER-BLACK
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Women's) - IB0A56H4 - Past Season
 TANG-PRALINE
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Women's) - IB0A56H4 - Past Season
 DECO-ASHEN
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Women's) - IB0A56H4 - Past Season
Quick buy
ICEBREAKER
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Men's) - IB0A56H3 - Past Season
$110.00 $150.00
Sale
S M L XL
BAJA-BRILLIANT
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Men's) - IB0A56H3 - Past Season
 CLOUD RAY-HYPER
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Men's) - IB0A56H3 - Past Season
 JET HEATHER-BLACK
125 ZoneKnit™ Merino Blend Long Sleeve Crewe Thermal Top (Men's) - IB0A56H3 - Past Season
Quick buy
SMARTWOOL
Classic All-Season Merino Base Layer 1/4 Zip Boxed (Women's) - SW016905 - Past Season
$70.00 $120.00
Sale
XS S M L XL
EGGPLANT
Classic All-Season Merino Base Layer 1/4 Zip Boxed (Women's) - SW016905 - Past Season
 TWILIGHT BLUE
Classic All-Season Merino Base Layer 1/4 Zip Boxed (Women's) - SW016905 - Past Season
Quick buy
SWIX
RaceX Dry Half Zip (Men's)
$90.00
M L XL XXL
BLACK-PHANTOM
RaceX Dry Half Zip (Men's)
Quick buy
SWIX
RaceX Dry Half Zip (Women's)
$90.00
S M L
DUSTY PURPLE - LIGHT PURPLE
RaceX Dry Half Zip (Women's)
Quick buy
SWIX
RaceX Classic Wind Half Zip (Men's)
$85.00
M L XL
BLACK
RaceX Classic Wind Half Zip (Men's)
Quick buy
SWIX
RaceX Classic Half Zip (Men's)
$80.00
S M L XL XXL
BLACK - PHANTOM
RaceX Classic Half Zip (Men's)
 DARK NAVY - BRIGHT WHITE
RaceX Classic Half Zip (Men's)
Quick buy
SWIX
RaceX Classic Half Zip (Women's)
$80.00
XS S M L XL
DARK NAVY - LAKE BLUE
RaceX Classic Half Zip (Women's)
 DUSTY PURPLE - LIGHT PURPLE
RaceX Classic Half Zip (Women's)
Quick buy
SWIX
RaceX Classic Long Sleeve (Men's)
$70.00
M L XL
BLACK
RaceX Classic Long Sleeve (Men's)
 COBALT
RaceX Classic Long Sleeve (Men's)