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(389 products)Products (389)
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- 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 Long-Sleeve Base Layer Top - Men'sTop Rated$54.95
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$115.00
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$115.00
- REI Co-opMerino 185 Base Layer Bottoms - Men's$79.95
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men'sTop Rated$79.95
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Men'sTop Rated$115.00
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$115.00
- REI Co-opHeavyweight Merino Base Layer Bottoms - Women's$99.95
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$54.73Save 30%compared to  $79.00REI OUTLET
- REI Co-opMidweight Base Layer Crew Top - Kids'Top Rated$34.95
- REI Co-opMidweight Base Layer Bottoms - Kids'Top Rated$34.95
- REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's$99.95
- REI Co-opMidweight Base Layer Bottoms - Men's$54.95
- Free CountryForce Grid Fleece Base Layer Top - Women's$34.73Save 36%compared to  $55.00REI OUTLET
- REI Co-opMidweight Base Layer Half-Zip Top - Women's$59.95
- Free CountryForce Grid Fleece Base Layer Bottoms - Women's$34.73Save 36%compared to  $55.00REI OUTLET
- tasc PerformanceElevation Merino T-Shirt - Women's$54.73Save 30%compared to  $79.00REI OUTLET
- REI Co-opMerino 185 Base Layer Bottoms - Women's$79.95
- PatagoniaCapilene Midweight Base Layer Bottoms - Men'sTop Rated$89.00
- tasc PerformanceElevation Merino Base Layer Bottoms - Men's$34.73 - $54.73Save 30% - 56%compared to  $79.00REI OUTLET
- Free CountryForce Grid Fleece Base Layer Top - Men'sTop Rated$29.73Save 33%compared to  $45.00REI OUTLET
- REI Co-opHeavyweight Merino Base Layer Bottoms - Men'sTop Rated$99.95
- Free CountryForce Grid Fleece Base Layer Bottoms - Men's$29.73Save 33%compared to  $45.00REI OUTLET
- REI Co-opMidweight Base Layer Half-Zip Top - Men'sTop Rated$59.95
- Free CountryCloud Knit Base Layer Bottoms - Men's$26.73Save 33%compared to  $40.00REI OUTLET
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women'sTop Rated$120.00
- REI Co-opLightweight Base Layer Bottoms - Men's$44.95
- Kari TraaKlara High-Waisted Base Layer Pants - Women's$62.73 - $66.73Save 25% - 30%compared to  $90.00REI OUTLET
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