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Base Layer Bottoms: Deals
(91 products)Products (91)
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- REI Co-opHeavyweight Merino Base Layer Bottoms - Women's$69.93 - $99.95Underwear Weight:HeavyweightSize Type:Regular, Plus
- REI Co-opHeavyweight Merino Base Layer Bottoms - Men'sTop Rated$69.93 - $99.95Underwear Weight:HeavyweightSize Type:Regular, Big, Tall
- tasc PerformanceElevation Merino Base Layer Bottoms - Men's$34.73 - $54.73Save 30% - 56%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Arc'teryxRho Base Layer Bottoms - Women's$24.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Plus
- Icebreaker260 Tech High-Rise Base Layer Leggings - Women's$89.93 - $125.00Underwear Weight:MidweightSize Type:Regular
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Kari TraaRose High-Waisted Base Layer Pants - Women'sTop Rated$90.93 - $120.00Underwear Weight:LightweightSize Type:Regular
- Arc'teryxRho Insulated 3/4 Base Layer Bottoms - Men'sTop Rated$159.73Save 20%compared to  $200.00Underwear Weight:HeavyweightSize Type:Big, RegularREI OUTLET
- Kari TraaKlara High-Waisted Base Layer Pants - Women's$62.73 - $66.73Save 25% - 30%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Midweight Base Layer Bottoms - Women's$61.93 - $89.00Size Type:Regular, Plus
- HalfdaysSophia Base Layer Leggings - Women's$65.93 - $95.00Underwear Weight:LightweightSize Type:Regular, Plus
- Kari TraaSilja 2.0 Base Layer Pants - Women's$76.93Save 30%compared to  $110.00Underwear Weight:HeavyweightSize Type:Regular
- Kari TraaAnna High-Waist Base Layer Pants - Women's$76.93 - $110.00Underwear Weight:MidweightSize Type:Regular
- Arc'teryxRho Base Layer Bottoms - Women's$79.73Save 20%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLIFA Merino Midweight Graphic Base Layer Pants - Women's$79.73Save 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SENIQWool Sculpt Merino Base Layer Leggings - Women's$99.93 - $128.00Underwear Weight:HeavyweightSize Type:Regular
- Icebreaker200 Sonebula Leggings - Men'sTop Rated$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- REI Co-opMerino Midweight Base Layer Bottoms - Kids'Top Rated$36.93Save 26%compared to  $49.95Underwear Weight:MidweightSize Type:Regular
- PatagoniaCapilene Midweight Base Layer Bottoms - Kids'New arrival$28.73Save 26%compared to  $39.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- KUHLReactiv Lite Grid Base Layer Bottoms - Women's$73.93Save 25%compared to  $99.00Underwear Weight:LightweightSize Type:Regular
Get $130 in value
$30 in card rewards are yours when approved for the REI Co-op Mastercard by Mar 9. Plus, you can earn a $100 REI gift card after your first purchase. Terms apply.
Apply now- Free CountryCloud Knit Base Layer Bottoms - Men's$26.73Save 33%compared to  $40.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's$92.73Save 28%compared to  $130.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis High-Rise Base Layer Leggings - Women's$79.93 - $130.00Underwear Weight:MidweightSize Type:Regular
- Mountain HardwearUp First Tech Fleece Base Layer Bottoms - Men'sNew arrival$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Free CountryForce Grid Fleece Base Layer Bottoms - Women's$34.73Save 36%compared to  $55.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- PatagoniaCapilene Thermal Weight Long Underwear Bottoms - Women's$49.83 - $99.00Underwear Weight:HeavyweightSize Type:Regular
- REI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes$49.93Save 37%compared to  $79.95Underwear Weight:LightweightSize Type:Plus
- HalfdaysHallie Midweight Merino Base Layer Leggings - Women'sTop Rated$89.93 - $130.00Underwear Weight:MidweightSize Type:Regular
- Arc'teryxRho Hybrid Insulated Base Layer Bottoms - Women's$145.73Save 19%compared to  $180.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaSaga Base Layer Pants - Women's$83.93Save 30%compared to  $120.00Underwear Weight:HeavyweightSize Type:Regular
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