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Base Layers
(447 products)Products (447)
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- Arc'teryxRho Zip-Neck Base Layer Top - Women'sTop Rated$79.93 - $120.00
- PatagoniaCapilene Midweight Base Layer Bottoms - Men'sTop Rated$59.93 - $89.00
- Sale Ends Sep 1REI Co-opLightweight Crew Base Layer Top - Men'sTop Rated$20.89Save 30%compared to  $29.95
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women'sTop Rated$39.83 - $89.95
- Arc'teryxIonia Merino Wool Base Layer Top - Men'sTop Rated$63.93Save 28%compared to  $90.00
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$44.83 - $90.00
- REI Co-opMerino 185 Base Layer Bottoms - Women's$79.95
- Kari TraaFryd Base Layer Pants - Women's$29.83 - $65.00
- REI Co-opMidweight Crew Base Layer Top - Toddlers'Top Rated$24.95
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's$79.95
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$81.73Save 28%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- REI Co-opMidweight Base Layer Bottoms - Toddlers'Top Rated$24.95
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$49.73Save 37%compared to  $79.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Kari TraaRose High-Waisted Base Layer Pants - Women'sTop Rated$54.83 - $130.00
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$51.83 - $105.00
- Arc'teryxIonia Merino Wool Base Layer Hoody - Men'sTop Rated$98.93Save 29%compared to  $140.00
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$115.00
- Sale Ends Sep 1REI Co-opLightweight Half-Zip Base Layer Top - Men'sTop Rated$31.39Save 30%compared to  $44.95
- Ortovox185 Rock'n'wool Short Base Layer Pants - Men's$49.83Save 50%compared to  $100.00
- Black DiamondSolution 150 Merino Base Layer Bottoms - Women'sTop Rated$79.73Save 27%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Kari TraaRose Half-Zip Base Layer Top - Women's$59.83 - $140.00
- SmartwoolIntraknit Active Base Layer Bottoms - Women's$59.83Save 45%compared to  $110.00
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Men'sTop Rated$115.00
- Arc'teryxRho LT Zip-Neck Base Layer Top - Men'sTop Rated$120.00
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's$90.00
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'Top Rated$46.73Save 28%compared to  $65.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's$90.00
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men'sTop Rated$120.00
- Terramar2.0 Cloud Nine Half-Zip Base Layer Top - Women's$34.73Save 30%compared to  $50.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$110.00 - $115.00
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