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Base Layer Bottoms
(131 products)Products (131)
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- REI Co-opMerino 185 Base Layer Bottoms - Men's$39.83 - $55.89Save 30% - 50%compared to  $79.95Underwear Weight:LightweightSize Type:Regular, Big
- Sale Ends May 26REI Co-opLightweight Base Layer Bottoms - Men'sTop Rated$27.89Save 30%compared to  $39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- TerramarC-Suite Mammoth Sherpa Fleece Mid-Layer Joggers - Women's$56.73Save 29%compared to  $80.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends May 26REI Co-opMidweight Base Layer Tights - Women's$38.39Save 30%compared to  $54.95Underwear Weight:MidweightSize Type:Regular, Plus, Petite
- Sale Ends May 26REI Co-opMidweight Base Layer Bottoms - Men's$38.39Save 30%compared to  $54.95Underwear Weight:MidweightSize Type:Regular, Big, Tall
- Sale Ends May 26SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$86.19Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:Regular
- Sale Ends May 26SmartwoolClassic Thermal Merino Base Layer Bottoms - Men'sTop Rated$86.19Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, Big
- REI Co-opLightweight Base Layer Tights - Women's Plus Sizes$9.83Save 75%compared to  $39.95Underwear Weight:LightweightSize Type:Plus
- Sale Ends May 26Icebreaker260 Merino Tech Thermal Leggings with Fly - Men'sTop Rated$93.69Save 25%compared to  $125.00Underwear Weight:HeavyweightSize Type:Regular, Big
- Arc'teryxKyanite Base Layer Bottoms - Women'sNew arrival$96.73Save 19%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaKlara High-Waist Base Layer Pant - Women's$44.83Save 50%compared to  $90.00Underwear Weight:LightweightSize Type:Regular
- The North FaceSummit Series Pro 120 Base Layer Tights - Women'sTop Rated$100.00Underwear Weight:UltralightweightSize Type:Plus
- Sale Ends May 26REI Co-opLightweight Base Layer Tights - Women'sTop Rated$27.89Save 30%compared to  $39.95Underwear Weight:LightweightSize Type:Regular, Plus
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Arc'teryxRho Heavyweight Base Layer Bottoms - Men'sTop Rated$84.83Save 29%compared to  $120.00Underwear Weight:HeavyweightSize Type:Regular, Big
- PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's$99.00Underwear Weight:HeavyweightSize Type:Regular
- Sale Ends May 26Kari TraaFryd Base Layer Pants - Women's$41.99Save 30%compared to  $60.00Underwear Weight:MidweightSize Type:Regular
- Terramar2.0 Cloud Nine Midweight Base Layer Capri Pants - Women's$28.73Save 28%compared to  $40.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends May 26SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men'sTop Rated$78.69Save 25%compared to  $105.00Underwear Weight:MidweightSize Type:Regular, Big
- Arc'teryxRho Base Layer Bottoms - Women's$100.00Underwear Weight:LightweightSize Type:Regular, Plus
- tasc PerformanceElevation Merino Base Layer Bottoms - Men's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'Top Rated$48.73Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- CraftActive Intensity Base Layer Pants - Women's$31.73Save 42%compared to  $54.95Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Icebreaker200 Sonebula Leggings - Men's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Sale Ends May 26Kari TraaMalia Base Layer Pants - Women's$48.73Save 30%compared to  $70.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- REI Co-opHeavyweight Merino Base Layer Bottoms - Women'sTop Rated$49.83 - $69.93Save 30% - 50%compared to  $99.95Underwear Weight:HeavyweightSize Type:Plus
- CraftCore Dry Active Comfort Base Layer Pants - Men's$32.73Save 34%compared to  $49.95Underwear Weight:MidweightSize Type:RegularREI OUTLET
- CraftCore Dry Active Comfort Base Layer Pants - Women's$29.73Save 33%compared to  $44.95Underwear Weight:MidweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Midweight Base Layer Bottoms - Women's$89.00Size Type:Regular, Plus
- Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's$85.00Underwear Weight:UltralightweightSize Type:Regular, Big
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