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Base Layer
(431 products)Products (431)
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- Kari TraaJuliane Wool Long-Sleeve Base Layer Top - Women's$90.73Save 30%compared to  $130.00REI OUTLET
- Kari TraaFryd Long-Sleeve Base Layer Top - Women's$44.73Save 18%compared to  $55.00REI OUTLET
- Kari TraaFloke Long-Sleeve Base Layer Top - Women's$74.73Save 25%compared to  $100.00REI OUTLET
- Kari TraaFierce Long-Sleeve Base Layer Top - Women's$44.73Save 25%compared to  $60.00REI OUTLET
- Kari TraaSmekker Half-Zip Base Layer Top - Women's$94.73Save 27%compared to  $130.00REI OUTLET
- Kari TraaLune Base Layer Pants - Women's$48.73Save 25%compared to  $65.00REI OUTLET
- Kari TraaEdith Half-Zip Base Layer Top - Women's$82.73Save 24%compared to  $110.00REI OUTLET
- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's$155.00
- Icebreaker260 ZoneKnit Long-Sleeve Crewe Thermal Top - Men'sTop Rated$165.00
- Ortovox185 Rock'N'Wool Short Base Layer Pants - Women's$64.73Save 35%compared to  $100.00REI OUTLET
- IcebreakerMerino 250 Vertex Long-Sleeve Half-Zip Thermal Top Sedimentary - Women's$89.73Save 40%compared to  $150.00REI OUTLET
- Wild RyeHailey Half-Zip Base Layer Top - Women's$69.73Save 41%compared to  $119.00REI OUTLET
- NRSLightweight Union Suit - Women's$109.95
- NRSExpedition Union Suit - Women's$159.95
- Kari TraaLucie Base Layer Bottoms - Women's$39.83Save 50%compared to  $80.00
- Mons RoyaleCascade Merino Flex Mock-Neck Base Layer Top - Women's$89.73Save 35%compared to  $140.00REI OUTLET
- Mons RoyaleCascade Merino Flex Base Layer Leggings - Women's$69.73Save 41%compared to  $120.00REI OUTLET
- Helly HansenLifa Merino Midweight Base Layer Set - Kids'$69.73Save 30%compared to  $100.00REI OUTLET
- Helly HansenOdin Power Stretch Half-Zip Base Layer Top - Women's$88.73Save 40%compared to  $150.00REI OUTLET
- Helly HansenH1 Pro Lifa Seamless Base Layer Bottoms - Women's$82.73Save 24%compared to  $110.00REI OUTLET
- Helly HansenH1 Pro Lifa Seamless Half-Zip Base Layer Top - Men's$96.73Save 35%compared to  $150.00REI OUTLET
- Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's$150.00
- Helly HansenLIFA Merino Midweight 3/4 Base Layer Pants - Men's$80.00
- The North FaceFD Pro 160 Base Layer Crew Top - Women's$70.00
- SmartwoolIntraknit Active Base Layer Bottoms - Men's$110.00
- Icebreaker125 ZoneKnit Crewe Base Layer Top - Men's$115.00
- Kari TraaRose High-Waist Base Layer Pants - Women's$76.73Save 30%compared to  $110.00REI OUTLET
- CraftActive Intensity Zip Base Layer Top - Women's$54.73Save 31%compared to  $79.95REI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Turtleneck Base Layer - Men'sTop Rated$135.00
- SmartwoolIntraknit Thermal Max Merino Base Layer Bottoms - Men's$66.83Save 50%compared to  $135.00
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