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- Kari TraaAlma Hood Base Layer Top - Women's$59.73Save 25%compared to  $80.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaFryd Long-Sleeve Base Layer Top - Women's$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Kari TraaMalia Half-Zip Base Layer Top - Women's$59.73Save 25%compared to  $80.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- Kari TraaLune Long-Sleeve Base Layer Top - Women's$41.73Save 35%compared to  $65.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaRose Light High-Waisted Base Layer Pants - Women's$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaVilma Half-Zip Base Layer Top - Women's$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaEloise Half-Zip Base Layer Top - Women's$59.73Save 25%compared to  $80.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women'sTop Rated$78.73Save 25%compared to  $105.00Size Type:Plus, RegularREI OUTLET
- Kari TraaSval Base Layer Pants - Women's$49.73Save 28%compared to  $70.00Underwear 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
- Kari TraaSmekker Base Layer Pants - Women's$83.73Save 30%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Icebreaker200 ZoneKnit Thermal Base Layer Leggings - Women'sTop Rated$109.73Save 26%compared to  $150.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaLucie Base Layer Pants - Women's$58.73Save 26%compared to  $80.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaRose Light Half-Zip Base Layer Top - Women's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaRose Base Layer Hoodie - Women's$97.73Save 24%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaSmekker Half-Zip Base Layer Top - Women's$89.73Save 30%compared to  $130.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaAlma Base Layer Pants - Women's$52.73Save 24%compared to  $70.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- Icebreaker200 Oasis Sonebula Base Layer Leggings - Women's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaSmekker Long-Sleeve Base Layer Top - Women's$89.73Save 25%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaFierce Base Layer Pants - Women's$46.73Save 29%compared to  $66.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaEdith Long-Sleeve Base Layer Top - Women's$74.73Save 25%compared to  $100.00Underwear 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
- IcebreakerMerino Base Layer Leggings - Women's$149.73Save 25%compared to  $200.00Size Type:RegularREI OUTLET
- Kari TraaAlma Half-Zip Base Layer Top - Women's$59.73Save 25%compared to  $80.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- Kari TraaEdith Half-Zip Base Layer Top - Women's$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Kids'Top Rated$52.73Save 29%compared to  $75.00Underwear 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 TraaFryd Base Layer Pants - Women's$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Sale Ends Oct 20IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Thermal Base Layer Top - Women's$78.99Save 50%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
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