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Base Layer Bottoms
(135 products)Products (135)
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- Ortovox185 Rock'n'wool Long Base Layer Pants - Men's$110.00Underwear Weight:MidweightSize Type:Big
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$81.73Save 28%compared to  $115.00Underwear Weight:MidweightSize Type:Plus, RegularREI OUTLET
- REI Co-opMidweight Base Layer Bottoms - Toddlers'Top Rated$24.95Underwear Weight:MidweightSize Type:Regular
- REI Co-opLightweight Base Layer Bottoms - Kids'Top Rated$29.95Underwear Weight:LightweightSize Type:Regular
- IcebreakerMerino 260 Vertex Natural Shades Base Layer Leggings - Women's$104.73Save 25%compared to  $140.00Size Type:RegularREI OUTLET
- Arc'teryxKyanite Base Layer Bottoms - Women'sTop Rated$84.83Save 29%compared to  $120.00Underwear Weight:HeavyweightSize Type:Regular
- Helly HansenH1 Pro Lifa Seamless Base Layer Bottoms - Women's$82.73Save 24%compared to  $110.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 260 Tech Thermal Base Layer Leggings - Women'sTop Rated$93.73Save 25%compared to  $125.00Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- Mountain HardwearMountain Stretch Base Layer Tights - Men's$55.73Save 25%compared to  $75.00Underwear Weight:MidweightSize Type:BigREI OUTLET
- Free CountryMicrotech Heat Base Layer Bottoms - Men's$31.73Save 29%compared to  $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Icebreaker200 Oasis Macro Forms Base Layer Leggings - Women's$85.73Save 25%compared to  $115.00Size Type:RegularREI OUTLET
- Kari TraaFryd Base Layer Pants - Women's$37.73 - $44.73Save 25% - 31%compared to  $55.00 - $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaKlara High-Waisted Base Layer Pants - Women's$62.73Save 30%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Helly HansenLifa Active Base Layer Bottoms - Women's$39.73Save 27%compared to  $55.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaFierce Base Layer Pants - Women's$39.73Save 33%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaFloke Base Layer Pants - Women's$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- CraftActive Intensity Base Layer Pants - Men's$36.73Save 33%compared to  $54.95Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Free CountryForce Grid Fleece Base Layer Bottoms - Women's$34.73Save 36%compared to  $55.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Pants - Women's$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLIFA Merino Midweight Graphic Base Layer Pants - Women's$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Active Base Layer Bottoms - Men's$81.73Save 25%compared to  $110.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- ArtilectFlatiron 185 Base Layer Leggings - Men's$109.73Save 31%compared to  $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Kari TraaFryd Base Layer Pants - Women's$32.73 - $44.73Save 25% - 40%compared to  $55.00 - $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Icebreaker260 ZoneKnit Base Layer Leggings - Men'sTop Rated$119.73Save 27%compared to  $165.00Underwear Weight:HeavyweightSize Type:Big, RegularREI OUTLET
- IcebreakerMerino Base Layer Leggings - Women's$149.73Save 25%compared to  $200.00Size Type:RegularREI OUTLET
- IcebreakerMerino 260 Tech Thermal Base Layer Leggings With Fly - Men'sTop Rated$93.73Save 25%compared to  $125.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLET
- Kari TraaAlma Base Layer Pants - Women's$52.73Save 24%compared to  $70.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- Free CountryMicrotech Heat Cocaber Base Layer Bottoms - Women's$34.73Save 30%compared to  $50.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Helly HansenGraphic Lifa Merino Base Layer Set - Kids'$74.73Save 32%compared to  $110.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaLilja Base Layer Pants - Women's$49.73Save 24%compared to  $66.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
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