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Wool Underwear
(247 products)Products (247)
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Kari TraaMina Long-Sleeve Base Layer Top - Women's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET- New arrival
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Kids'
$52.73Save 24%compared to  $70.00Underwear Weight:MidweightSize Type:RegularREI OUTLET Kari TraaMina Base Layer Pants - Women's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLETArtilectBoulder 125 Crew Long-Sleeve Base Layer Top - Women's
$82.73Save 31%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLETIcebreaker200 Oasis Sonebula Long-Sleeve Crewe Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET- Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
$99.73Save 26%compared to  $135.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLET Icebreaker200 Oasis Sonebula Base Layer Leggings - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
IcebreakerMerino 260 Tech Thermal Base Layer Leggings - Kids'
$49.73Save 28%compared to  $70.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET Helly HansenLIFA Merino Midweight 2-In-1 Graphic Half-Zip Base Layer Top - Women's
$86.73 - $89.73Save 25% - 27%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaMalia Base Layer Pants - Women's
$52.73Save 24%compared to  $70.00Underwear Weight:MidweightSize Type:RegularREI OUTLETTerramar3.0 Thermawool Half-Zip Base Layer Top - Women's
$56.73Save 24%compared to  $75.00Underwear Weight:MidweightSize Type:RegularREI OUTLETTerramar3.0 Thermawool Base Layer Tights - Women's
$52.73Save 24%compared to  $70.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaLekker Half-Zip Base Layer Top - Women's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLETIcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight Crew Base Layer Top - Women's
$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreakerMerino 260 Tech Long Sleeve Crewe Base Layer Top - Men's
$119.73Save 27%compared to  $165.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLETKari TraaRose Light High-Waisted Base Layer Pants - Women's
$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreaker125 ZoneKnit Merino Thermal Leggings - Men's
$93.73Save 25%compared to  $125.00Underwear Weight:UltralightweightSize Type:Regular, BigREI OUTLETKari TraaLucie Half-Zip Base Layer Top - Women's
$67.73Save 24%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET- Top Rated
IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET - Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women's
$99.73Save 26%compared to  $135.00Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET - New arrival
SmartwoolIntraknit Thermal Merino Base Layer Colorblock Crew - Men's
$97.73Save 24%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$97.73Save 24%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET- Top Rated
ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Men's
$109.73Save 31%compared to  $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Kids'
$52.73Save 29%compared to  $75.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaAlma Hood Base Layer Top - Women's
$59.73Save 25%compared to  $80.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLETIcebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Women's
$93.73Save 25%compared to  $125.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaAlma Half-Zip Base Layer Top - Women's
$59.73Save 25%compared to  $80.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLETKari TraaLucie Base Layer Pants - Women's
$59.73Save 25%compared to  $80.00Underwear Weight:LightweightSize Type:RegularREI OUTLETSmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's
$97.73Save 24%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
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