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Underwear
(537 products)Products (537)
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- Helly HansenHH Durawool T-Shirt - Women's$80.00
- Kari TraaAlma Half-Zip Base Layer Top - Women's$59.73Save 25%compared to  $80.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- Kari TraaAlma Hood Base Layer Top - Women's$59.73Save 25%compared to  $80.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's$123.73Save 25%compared to  $165.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- Terramar2.0 Cloud Nine Half-Zip Base Layer Top - Women's$34.73Save 30%compared to  $50.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Thermal Base Layer Top - Women's$119.73Save 25%compared to  $160.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- Kari TraaLilja Long-Sleeve Base Layer Top - Women's$49.73Save 24%compared to  $66.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's$74.73Save 24%compared to  $99.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- The North FaceSummit Series Pro 120 Crew Base Layer Top - Women'sTop Rated$100.00
- IcebreakerMerino 150 Tech Lite III Relaxed T-Shirt - Women's$80.00
- Icebreaker125 Cool-Lite Merino Blend Sphere III Scoop T-Shirt - Women's$75.00
- Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's$150.00
- Kari TraaFloke Long-Sleeve Base Layer Top - Women's$74.73Save 25%compared to  $100.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- Helly HansenLIFA Merino Midweight Crew Base Layer Top - Women's$69.73Save 30%compared to  $100.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- Terramar2.0 Ultra Merino Turtleneck Base Layer Top - Women's$52.73Save 29%compared to  $75.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- Helly HansenLIFA Merino Midweight Graphic Base Layer Crew Top - Women's$110.00
- IcebreakerMerino Blend 260 ZoneKnit Seamless Long-Sleeve Crew Base Layer Top - Women's$150.00
- Helly HansenLifa Merino Midweight Base Layer Half-Zip Top - Women's$110.00
- Ortovox185 Merino Rock'n'wool Base Layer Top - Women's$49.83Save 50%compared to  $100.00
- Wild RyeHailey Half-Zip Base Layer Top - Women's$69.73Save 41%compared to  $119.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
- The North FaceFD Pro 160 Base Layer Crew Top - Women's$70.00
- Kari TraaSmekker Half-Zip Base Layer Top - Women's$130.00
- KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Women'sNew arrival$109.00
- KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Women'sNew arrival$119.00
- Kari TraaSilja Half-Zip 2.0 Base Layer Top - Women'sNew arrival$110.00
- Helly HansenOdin Power Stretch Half-Zip Base Layer Top - Women's$88.73Save 40%compared to  $150.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletREI OUTLET
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