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Women's Base Layers
(233 products)Products (233)
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- Black DiamondSolution 150 Merino Base Layer Crew Top - Women'sTop Rated$99.73Save 26%compared to  $135.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's$92.73Save 28%compared to  $130.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolClassic Thermal Merino Lettuce Edge Crew Base Layer Top - Women's$82.73Save 28%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's$90.00
- Helly HansenLIFA Merino Midweight Crew Base Layer Top - Women's$69.73Save 30%compared to  $100.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- REI Co-opMerino 185 Base Layer Bottoms - Women's$79.95
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes$79.95
- IcebreakerMerino 200 Oasis Long-Sleeve Half-Zip Thermal Base Layer Top - Women'sTop Rated$84.73Save 26%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Terramar3.0 Thermawool Crew Base Layer Top - Women's$49.73 - $52.73Save 24% - 28%compared to  $70.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- CraftCORE Dry Active Comfort Base Layer Top - Women's$39.73Save 38%compared to  $64.95Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women'sTop Rated$99.95
- Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Women's$93.73Save 25%compared to  $125.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Kari TraaLucie Half-Zip Base Layer Top - Women's$67.73Save 24%compared to  $90.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolIntraknit Active Base Layer Bottoms - Women's$59.83Save 45%compared to  $110.00
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus Sizes$29.83 - $89.95
- PatagoniaCapilene Midweight Crew Base Layer Top - Women'sTop Rated$59.93 - $89.00
- SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's$99.00
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Hoodie - Women's$86.73Save 27%compared to  $120.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Women'sTop Rated$104.95
- Helly HansenLifa Merino Midweight Graphic Base Layer Top - Women'sTop Rated$79.73 - $82.73Save 24% - 27%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's$114.73Save 30%compared to  $165.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Helly HansenLIFA Merino Midweight 2-In-1 Graphic Half-Zip Base Layer Top - Women's$86.73Save 27%compared to  $120.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Sale Ends Aug 28SmartwoolIntraknit Active Base Layer Bottoms - Women's$54.99Save 50%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolIntraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's$140.00
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$130.00
- SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Women's$95.00
- Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women'sTop Rated$115.00
- Free CountryMicrotech Heat Cocaber Base Layer Top - Women's$34.73Save 30%compared to  $50.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- IcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's$104.73Save 25%compared to  $140.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
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