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Merino Wool Base Layers
(274 products)Products (274)
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Kari TraaSummer Wool Base Layer Pants - Women's
$49.73Save 28%compared to  $70.00Underwear Weight:LightweightSize Type:RegularREI OUTLETMons RoyaleCascade Merino Flex Mock-Neck Base Layer Top - Women's
$89.73Save 35%compared to  $140.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaRose Light Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Men's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETWild RyeJane Leggings - Women's
$64.73Save 40%compared to  $109.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaElenore Base Layer Leggings - Women's
$63.73Save 25%compared to  $85.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaJuliane Wool Half-Zip Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETWild RyeHailey Half-Zip Base Layer Top - Women's
$69.73Save 41%compared to  $119.00Underwear Weight:MidweightSize Type:RegularREI OUTLETSmartwoolIntraknit Active Base Layer Crew Top - Women's
$76.73Save 30%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLETtasc PerformanceElevation Merino Base Layer Bottoms - Men's
$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETIcebreakerMerino 175 Everyday Long-Sleeve Crewe Thermal Top - Men's
$63.73Save 25%compared to  $85.00Underwear Weight:LightweightSize Type:RegularREI OUTLET- Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
$48.73Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
$73.73Save 29%compared to  $105.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET IcebreakerMerino Base Layer Leggings - Women's
$149.73Save 25%compared to  $200.00Size Type:RegularREI OUTLETHelly HansenLifa Merino Midweight Base Layer Pants - Women's
$100.00Underwear Weight:MidweightSize Type:Regular, PlusIcebreakerMerino 260 Vertex Long-Sleeve Crewe Glacial Flow Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETSmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
$81.73Save 28%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLETHelly HansenLIFA Merino Midweight Crew Base Layer Top - Men's
$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETIcebreaker300 MerinoFine Long-Sleeve Roll-Neck Base Layer Top - Women's
$164.73Save 25%compared to  $220.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreaker200 ZoneKnit Merino Thermal Base Layer Leggings - Men's
$111.73Save 25%compared to  $150.00Size Type:Regular, BigREI OUTLETSmartwoolIntraknit Active Base Layer Crew Shirt - Women's
$76.73Save 30%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLETTerramar3.0 Thermawool Heavyweight Thermal Pants - Men's
$49.73Save 28%compared to  $70.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLETHelly HansenLIFA Merino Midweight 2-In-1 Base Layer Pants - Women's
$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaJuliane Wool Base Layer Pants - Women's
$90.73Save 30%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETTerramar3.0 Thermawool Heavyweight Thermal Crew Shirt - Men's
$49.73Save 28%compared to  $70.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETHelly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Men's
$79.73 - $82.73Save 24% - 27%compared to  $110.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETIcebreakerMerino 260 Vertex Glacial Flow Base Layer Leggings - Women's
$104.73Save 25%compared to  $140.00Size Type:RegularREI OUTLETSmartwoolIntraknit Active Base Layer Bottoms - Women's
$76.73Save 30%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLETOrtovox185 Rock'n'wool Long-Sleeve Base Layer Top - Men's
$76.73Save 30%compared to  $110.00Underwear Weight:LightweightSize Type:RegularREI OUTLETSmartwoolIntraknit Active Base Layer Bottoms - Women's
$76.73Save 30%compared to  $110.00Size Type:RegularREI OUTLET
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