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Base Layers
(459 products)Products (459)
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Free CountryMicrotech Heat Cocaber Base Layer Top - Men's
$26.73Save 33%compared to  $40.00REI OUTLETKari TraaRose Light Base Layer Top - Women's
$89.73Save 25%compared to  $120.00REI OUTLETHelly HansenLifa Active Graphic Crew Base Layer Top - Women's
$48.73Save 25%compared to  $65.00REI OUTLETFree CountryCloud Knit Base Layer Bottoms - Women's
$31.73Save 29%compared to  $45.00REI OUTLETIcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Men's
$104.73Save 25%compared to  $140.00REI OUTLETKari TraaSilja Base Layer Pants - Women's
$89.73Save 25%compared to  $120.00REI OUTLETKari TraaFierce Base Layer Pants - Women's
$39.73Save 33%compared to  $60.00REI OUTLETWild RyeJane Leggings - Women's
$64.73Save 40%compared to  $109.00REI OUTLETHelly HansenHH LIFA Base Layer Set - Kids'
$70.00Kari TraaElenore Base Layer Leggings - Women's
$63.73Save 25%compared to  $85.00REI OUTLETHelly HansenH1 Pro Lifa Seamless Half-Zip Base Layer Top - Men's
$112.73Save 24%compared to  $150.00REI OUTLETWild RyeHailey Half-Zip Base Layer Top - Women's
$69.73Save 41%compared to  $119.00REI OUTLETKari TraaJuliane Wool Half-Zip Base Layer Top - Women's
$104.73Save 25%compared to  $140.00REI OUTLETSmartwoolIntraknit Active Base Layer Crew Top - Women's
$76.73Save 30%compared to  $110.00REI OUTLETIcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Natural Shades Base Layer Top - Women's
$111.73Save 25%compared to  $150.00REI OUTLETIcebreakerMerino 175 Everyday Long-Sleeve Crewe Thermal Top - Men's
$63.73Save 25%compared to  $85.00REI OUTLETMountain HardwearMountain Stretch Base Layer Tights - Men's
$55.73Save 25%compared to  $75.00REI OUTLETCraftActive Intensity Base Layer Pants - Women's
$31.73Save 42%compared to  $54.95REI OUTLETtasc PerformanceElevation Merino Base Layer Bottoms - Men's
$54.73Save 30%compared to  $79.00REI OUTLETFree CountryForce Grid Fleece Base Layer Bottoms - Men's
$29.73Save 33%compared to  $45.00REI OUTLET- Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
$48.73Save 25%compared to  $65.00REI OUTLET Helly HansenLIFA ACTIVE Stripe Crew Base Layer Top - Women's
$44.73Save 25%compared to  $60.00REI OUTLETKari TraaRose High-Waist Base Layer Capris - Women's
$56.73 - $76.73Save 23% - 36%compared to  $90.00 - $100.00REI OUTLETKari TraaFryd Base Layer Pants - Women's
$32.73 - $44.73Save 25% - 40%compared to  $55.00 - $60.00REI OUTLETCraftCORE Dry Active Comfort Base Layer Top - Women's
$44.73Save 31%compared to  $64.95REI OUTLET- Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
$73.73Save 29%compared to  $105.00REI OUTLET CraftActive Intensity Zip Base Layer Top - Women's
$54.73Save 31%compared to  $79.95REI OUTLETIcebreakerMerino Base Layer Leggings - Women's
$149.73Save 25%compared to  $200.00REI OUTLETHelly HansenLifa Merino Midweight Base Layer Pants - Women's
$100.00IcebreakerMerino 260 Vertex Long-Sleeve Crewe Glacial Flow Base Layer Top - Women's
$104.73Save 25%compared to  $140.00REI OUTLET
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