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Discover new summer layers.

Discover new summer layers.

Discover new summer layers.

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Trailhead CollectionSun protectionBalaclavasNeck gaitersSun hoodiesNew arrivalsMerinoBase layersKids' sun protectionHelp center

This season’s standouts.

BlackStrap Daily Tube Neck Gaiter #color_scribble larkMan pulling a BlackStrap Daily Tube neck gaiter up over his face, with a mountain peak in the background #color_scribble lark
Daily Tube Neck Gaiter Prints
Sale price$19.99
Color+19
Men's Brackish Hoodie BlackStrap #color_sharktooth joryPerson wearing the BlackStrap Brackish sun Hoodie in a blue kayak with 'Kokopelli' branding, surrounded by rocks and water. #color_sharktooth jory
Men's Brackish Sun Hoodie
Sale price$69.99
Color+3
Women's Brackish Hoodie BlackStrap #color_stratusSide profile of a woman walking near an alpine lake wearing the BlackStrap Women's Brackish Long Sleeve Hoodie with hood up #color_stratus
Women's Brackish Sun Hoodie
Sale price$69.99
Color+3
BlackStrap Men's Evap Short #color_sharktooth joryBlackStrap Men's Evap Short #color_sharktooth jory
Men's Evap Active Short 7"
Sale price$69.99
Color
BlackStrap Women's Evap Short #color_slash spruceWomen hiking at the lake wearing the BlackStrap Women's Evap Short with the Brackish Sun Hoodie #color_slash spruce
Women's Evap Active Short 3"
Sale price$69.99
Color
Men's BlackStrap Aspect Tee Shirt #color_smolderedMan pouring water over his head while standing in a mountain creek wearing the BlackStrap Men's Aspect Tee #color_smoldered
Men's Aspect Drirelease® Short Sleeve Tee
Sale price$49.99
Color+1
Women's BlackStrap Aspect Hoodie #color_spruceWoman setting up a tent wearing the BlackStrap Women's Aspect Hoodie Long Sleeve #color_spruce
Women's Aspect Drirelease® Ultralight Hoodie
Sale price$74.99
Color+3
Base Layers & Thermal Underwear for Men, Women, and Kids

Base Layers

Cold weather expeditions are all about proper layering, and that starts here. Explore thermal base layers for men, women + kids.

23 products
Save $28.00BlackStrap Men's Vista Baselayer Crewneck Long Sleeve #color_pulse cherryBlackStrap Men's Vista Baselayer Crewneck Long Sleeve #color_pulse cherry
Men's Vista Base Layer Crewneck
Sale price$69.99
Color
Save $28.00BlackStrap Men's Vista Baselayer Pant #color_cherryBlackStrap Men's Vista Baselayer Pant #color_cherry
Men's Vista Base Layer Pant
Sale price$69.99
Color
Save $28.00BlackStrap Women's Vista Baselayer Hoodie #color_inprint-currantBlackStrap Women's Vista Baselayer Hoodie #color_inprint-currant
Women's Vista Base Layer Hoodie
Sale price$69.99
Color
Save $28.00BlackStrap Women's Vista Baselayer Legging #color_ashBlackStrap Women's Vista Baselayer Legging #color_ash
Women's Vista Base Layer Leggings
Sale price$69.99
Color
Save $28.00BlackStrap Men's Vista Baselayer Hoodie #color_pondy deschutesBlackStrap Men's Vista Baselayer Hoodie #color_pondy deschutes
Men's Vista Base Layer Hoodie
Sale price$69.99
Color
Save $28.00BlackStrap Women's Vista Baselayer Crewneck Long Sleeve #color_animo ashBlackStrap Women's Vista Baselayer Crewneck Long Sleeve #color_animo ash
Women's Vista Base Layer Crewneck
Sale price$69.99
Color
NewSave $32.00BlackStrap Mens Vista Quater Zip Pullover #color_cherryBlackStrap Mens Vista Quater Zip Pullover #color_cherry
Men's Vista Base Layer Crewneck 1/4 Zip
Sale price$79.99
Color
NewSave $32.00BlackStrap Womens Quarter Zip Hoodie #color_moonlightBlackStrap Womens Quarter Zip Hoodie #color_moonlight
Women's Vista Base Layer Crewneck 1/4 Zip
Sale price$79.99
Color
Best SellerSave $24.00Men's Skyliner All-Season Base Layer Crewneck BlackStrap #color_pondy deschutesMen's Skyliner All-Season Base Layer Crewneck BlackStrap #color_pondy deschutes
Men's Skyliner All-Season Base Layer Crewneck
Sale price$59.99
Color
Best SellerSave $24.00Men's Skyliner All-Season Base Layer Pants BlackStrap #color_pondy deschutesMen's Skyliner All-Season Base Layer Pants BlackStrap #color_pondy deschutes
Men's Skyliner All-Season Base Layer Pants
Sale price$59.99
Color
Best SellerSave $24.00BlackStrap Women's Skyliner Baselayer Crewneck Long Sleeve #color_inprint currantBlackStrap Women's Skyliner Baselayer Crewneck Long Sleeve #color_inprint currant
Women's Skyliner All-Season Base Layer Crewneck
Sale price$59.99
Color
Best SellerSave $24.00Women's Skyliner All-Season Base Layer Leggings #color_inprint currantWomen's Skyliner All-Season Base Layer Leggings #color_inprint currant
Women's Skyliner All-Season Base Layer Leggings
Sale price$59.99
Color
Best SellerSave $32.00Men's Summit Base Layer Crewneck BlackStrap #color_pulse-cherryMen's Summit Base Layer Crewneck BlackStrap #color_pulse-cherry
Men's Summit Base Layer Crewneck
Sale price$79.99
Color
Best SellerSave $32.00Men's Summit Base Layer Pants BlackStrap #color_pulse-cherryMen's Summit Base Layer Pants BlackStrap #color_pulse-cherry
Men's Summit Base Layer Pants
Sale price$79.99
Color
Men's Summit Base Layer Hoodie BlackStrap #color_inprint obsidianMen's Summit Base Layer Hoodie BlackStrap #color_inprint obsidian
Men's Summit Base Layer Hoodie
Sale price$79.99
Color
Best SellerSave $32.00BlackStrap Women's Summit Baselayer Hoodie #color_animo ashBlackStrap Women's Summit Baselayer Hoodie #color_animo ash
Women's Summit Base Layer Hoodie
Sale price$79.99
Color
Best SellerSave $32.00BlackStrap Women's Summit Baselayer Leggings #color_inprint currantBlackStrap Women's Summit Baselayer Leggings #color_inprint currant
Women's Summit Base Layer Leggings
Sale price$79.99
Color
Save $32.00BlackStrap Women's Summit Baselayer Crewneck Long Sleeve #color_animo ashBlackStrap Women's Summit Baselayer Crewneck Long Sleeve #color_animo ash
Women's Summit Base Layer Crewneck
Sale price$79.99
Color
Men's Skyliner All-Season Base Layer Three-Quarter Pants BlackStrap #color_blackMen's Skyliner All-Season Base Layer Three-Quarter Pants BlackStrap #color_black
Men's Skyliner All-Season Base Layer Three-Quarter Pants
Sale price$59.99
Color
Save $16.00Big Kids' Evolver Crewneck Long Sleeve BlackStrap #color_pondy smolderedBig Kids' Evolver Crewneck Long Sleeve BlackStrap #color_pondy smoldered
Big Kids' Evolver Base Layer Crewneck
Sale price$39.99
Color+1
Save $16.00Big Kids' Evolver Baselayer Pant BlackStrap #color_pondy smolderedBig Kids' Evolver Baselayer Pant BlackStrap #color_pondy smoldered
Big Kids' Evolver Base Layer Pant
Sale price$39.99
Color+1
Best SellerSave $12.00Kids' Little Pine Crewneck Long Sleeve BlackStrap #color_tracked evergreenKids' Little Pine Crewneck Long Sleeve BlackStrap #color_tracked evergreen
Kids' Little Pine Base Layer Crewneck
Sale price$29.99
Color+1
Best SellerSave $12.00Kids' Little Pine Baselayer Pant BlackStrap #color_tracked evergreenKids' Little Pine Baselayer Pant BlackStrap #color_tracked evergreen
Kids' Little Pine Base Layer Pant
Sale price$29.99
Color+1

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