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Women's Base Layer Tops
(157 products)Products (157)
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- SmartwoolClassic Thermal Merino Half-Zip Base Layer Hoodie - Women's$145.00Size Type:Regular
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's$99.00Underwear Weight:MidweightSize Type:Regular
- Sale Ends Oct 6IcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's$97.73Save 30%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaVilma Long-Sleeve Base Layer Top - Women's$67.73Save 24%compared to  $90.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolThermal Merino Rib Turtleneck Base Layer Top - Women's$130.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaFryd Half-Zip Base Layer Top - Women's$49.73Save 24%compared to  $66.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Helly HansenLIFA Merino Midweight 2-In-1 Graphic Half-Zip Base Layer Top - Women's$86.73Save 27%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLIFA Merino Midweight Balaclava Hoodie - Women's$106.73Save 28%compared to  $150.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaAlma Hood Base Layer Top - Women's$59.73Save 25%compared to  $80.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- Kari TraaRose Light Base Layer Top - Women's$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus Sizes$89.95Underwear Weight:LightweightSize Type:Plus
- Free CountryMicrotech Heat Cocarber Base Layer Top - Women'sNew arrival$39.73Save 33%compared to  $60.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Women's$180.00Underwear Weight:MidweightSize Type:Regular
- SpraywayEffra Hoody Base Layer Top - Women's$49.73Save 28%compared to  $69.95Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Women's$130.00Underwear Weight:MidweightSize Type:Regular
- PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Women's$99.00Underwear Weight:HeavyweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's$140.00Underwear Weight:MidweightSize Type:Regular
- Sale Ends Oct 6Sweaty BettyHigh-Neck Jacquard Base Layer Top - Women'sTop Rated$75.73Save 35%compared to  $118.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Terramar3.0 Thermawool Half-Zip Base Layer Top - Women's$56.73Save 24%compared to  $75.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Free CountryMicrotech Heat Cocarber Base Layer Top - Women's$34.73Save 30%compared to  $50.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Sale Ends Oct 6Terramar2.0 Cloud Nine Midweight Performance Thermal Turtleneck - Women's$26.73Save 44%compared to  $48.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Women's$93.73Save 25%compared to  $125.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaLucie Half-Zip Base Layer Top - Women's$67.73Save 24%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Terramar2.0 Cloud Nine Midweight Performance Base Layer Scoop Shirt - Women's$29.73Save 33%compared to  $45.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLIFA ACTIVE Graphic Crew Base Layer Top - Women's$42.73Save 34%compared to  $65.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Helly HansenLifa Merino Midweight Graphic Base Layer Top - Women'sTop Rated$79.73 - $82.73Save 24% - 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SpraywayEffra Crew Base Layer Top - Women's$36.73Save 26%compared to  $49.95Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Women's$109.00Underwear Weight:LightweightSize Type:Regular
- Sale Ends Oct 6ArtilectFlatiron 185 Quarter-Zip Base Layer Top - Women's$95.73Save 40%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
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