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Base Layers
(375 products)Products (375)
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- SmartwoolIntraknit Active Base Layer Bottoms - Men's$81.73Save 25%compared to  $110.00REI OUTLET
- ArtilectFlatiron 185 Quarter-Zip Base Layer Top - Women's$109.73Save 31%compared to  $160.00REI OUTLET
- ArtilectBoulder 125 Crew Long-Sleeve Base Layer Top - Women's$82.73Save 31%compared to  $120.00REI OUTLET
- SpraywayEffra Jacket Base Layer Top - Women's$46.73Save 28%compared to  $64.95REI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$85.73Save 25%compared to  $115.00REI OUTLET
- Sale Ends May 26Kari TraaLilja Base Layer Pants - Women's$45.73Save 30%compared to  $66.00REI OUTLET
- Arc'teryxRho LT Base Layer Bottoms - Men'sNew arrival$79.73Save 20%compared to  $100.00REI OUTLET
- SmartwoolClassic Thermal Merino Lettuce Edge Base Layer Bottoms - Women's$82.73Save 28%compared to  $115.00REI OUTLET
- Icebreaker200 Oasis Sonebula Base Layer Leggings - Women's$89.73Save 25%compared to  $120.00REI OUTLET
- Sale Ends May 26Kari TraaLucie Half-Zip Base Layer Top - Women's$62.73Save 30%compared to  $90.00REI OUTLET
- Sale Ends May 26Kari TraaMalia Base Layer Pants - Women's$48.73Save 30%compared to  $70.00REI OUTLET
- IcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's$104.73Save 25%compared to  $140.00REI OUTLET
- Arc'teryxKyanite Base Layer Bottoms - Women'sNew arrival$96.73Save 19%compared to  $120.00REI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Hoodie - Kids'$51.73Save 31%compared to  $75.00REI OUTLET
- ZoicLuxe Bib Bike Liner Shorts - Men's$82.73Save 31%compared to  $120.00REI OUTLET
- Icebreaker200 Oasis Sonebula Long-Sleeve Crewe Base Layer Top - Women's$89.73Save 25%compared to  $120.00REI OUTLET
- IcebreakerMerino 260 Tech Thermal Base Layer Leggings - Kids'Top Rated$49.73Save 28%compared to  $70.00REI OUTLET
- Sale Ends May 26Kari TraaLilja Long-Sleeve Base Layer Top - Women's$45.73Save 30%compared to  $66.00REI OUTLET
- CraftCore Dry Active Comfort Base Layer Pants - Men's$32.73Save 34%compared to  $49.95REI OUTLET
- Terramar2.0 Cloud Nine Midweight Base Layer Capri Pants - Women's$28.73Save 28%compared to  $40.00REI OUTLET
- Sale Ends May 26Kari TraaAlma Hood Base Layer Top - Women's$55.73Save 30%compared to  $80.00REI OUTLET
- Terramar3.0 Thermawool Half-Zip Base Layer Top - Women's$56.73Save 24%compared to  $75.00REI OUTLET
- Arc'teryxRho Boot Cut Base Layer Bottoms - Women'sNew arrival$72.73Save 19%compared to  $90.00REI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Kids'$51.73Save 26%compared to  $70.00REI OUTLET
- Terramar3.0 Thermawool Base Layer Tights - Women's$52.73Save 24%compared to  $70.00REI OUTLET
- TerramarC-Suite Fusion Thermal Pants - Women's$46.73Save 28%compared to  $65.00REI OUTLET
- Sale Ends May 26Kari TraaMina Long-Sleeve Base Layer Top - Women's$41.73Save 30%compared to  $60.00REI OUTLET
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's$74.73Save 24%compared to  $99.00REI OUTLET
- SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's$123.73Save 25%compared to  $165.00REI OUTLET
- ZoicEveryday Bike Liner Shorts - Women's$36.73Save 26%compared to  $50.00REI OUTLET
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