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(385 products)Products (385)
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- REI Co-opMidweight Base Layer Bottoms - Men's$54.95
- REI Co-opMidweight Long-Sleeve Base Layer Top - Men'sTop Rated$37.93 - $54.95
- REI Co-opMidweight Base Layer Bottoms - Kids'Top Rated$34.95
- REI Co-opMidweight Base Layer Crew Top - Kids'Top Rated$34.95
- REI Co-opHeavyweight Merino Base Layer Bottoms - Men'sTop Rated$69.93 - $99.95
- REI Co-opHeavyweight Merino Base Layer Bottoms - Women's$69.93 - $99.95
- REI Co-opMidweight Long-Sleeve Base Layer Top - Women's$54.95
- REI Co-opMidweight Base Layer Tights - Women's$54.95
- REI Co-opMidweight Base Layer Half-Zip Top - Women's$59.95
- REI Co-opMerino 185 Base Layer Bottoms - Men's$55.93 - $79.95
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$54.73Save 30%compared to  $79.00REI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Men'sTop Rated$125.00
- REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's$69.93 - $99.95
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women'sTop Rated$130.00
- REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's$69.93 - $99.95
- REI Co-opLightweight Base Layer Bottoms - Men'sTop Rated$44.95
- Arc'teryxRho Base Layer Bottoms - Women's$24.83 - $100.00
- REI Co-opMerino Midweight Base Layer Bottoms - Kids'Top Rated$49.95
- Icebreaker260 Tech High-Rise Base Layer Leggings - Women'sTop Rated$89.93 - $125.00
- REI Co-opLightweight Half-Zip Base Layer Top - Women'sTop Rated$49.95
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's$44.95
- REI Co-opMerino 185 Base Layer Bottoms - Women's$79.95
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$125.00
- REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Women'sTop Rated$72.93 - $104.95
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women'sTop Rated$69.93 - $120.00
- tasc PerformanceElevation Merino Base Layer Bottoms - Men's$34.73 - $54.73Save 30% - 56%compared to  $79.00REI OUTLET
- REI Co-opMidweight Base Layer Bottoms - Toddlers'Top Rated$24.95
- REI Co-opMidweight Base Layer Crew Top - Toddlers'Top Rated$24.95
- tasc PerformanceElevation Merino T-Shirt - Women's$54.73Save 30%compared to  $79.00REI OUTLET
- REI Co-opMidweight Base Layer Half-Zip Top - Men'sTop Rated$41.93 - $59.95
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