Men's Base Layer Bottoms: Deals
(19 products)- REI Co-opHeavyweight Merino Base Layer Bottoms - Men'sTop Rated$69.93 - $99.95Underwear Weight:HeavyweightSize Type:Regular, Big, Tall
- REI Co-opMerino 185 Base Layer Bottoms - Men's$55.93 - $79.95Underwear Weight:LightweightSize Type:Regular, Big
- tasc PerformanceElevation Merino Base Layer Bottoms - Men's$34.73 - $54.73Save 30% - 56%compared to  $79.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- Sale Ends TodayIcebreaker200 Sonebula Leggings - Men'sTop Rated$71.73Save 40%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Men's$85.93Save 25%compared to  $115.00Underwear Weight:LightweightSize Type:Regular, Big
- Sale Ends TodayArc'teryxRho Insulated 3/4 Base Layer Bottoms - Men'sTop Rated$139.73Save 30%compared to  $200.00Underwear Weight:HeavyweightSize Type:Big, RegularREI OUTLET
- Free CountryCloud Knit Base Layer Bottoms - Men's$26.73Save 33%compared to  $40.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- Free CountryForce Grid Fleece Base Layer Bottoms - Men's$29.73Save 33%compared to  $45.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Mountain HardwearUp First Tech Fleece Base Layer Bottoms - Men'sNew arrival$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's$70.93Save 25%compared to  $95.00Underwear Weight:UltralightweightSize Type:Regular, Big
- Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's$62.93Save 25%compared to  $85.00Underwear Weight:UltralightweightSize Type:Regular, Big
- Arms of Andes300 Lightweight Alpaca Wool 3/4 Base Layer Leggings - Men's$81.93Save 25%compared to  $110.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolIntraknit Active Base Layer Bottoms - Men's$81.73Save 25%compared to  $110.00Underwear Weight:MidweightSize Type:BigREI OUTLET
- Terramar2.0 Thermolator Base Layer Pants - Men's$32.73Save 27%compared to  $45.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Sale Ends TodayArc'teryxRho LT Base Layer Bottoms - Men's$69.73Save 30%compared to  $100.00Underwear Weight:MidweightSize Type:BigREI OUTLET
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Pants - Men's$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:BigREI OUTLET
- TerramarC-Suite Mammoth Sherpa Fleece Mid-Layer Pants - Men's$56.73Save 29%compared to  $80.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Icebreaker200 ZoneKnit Merino Thermal Base Layer Leggings - Men's$109.73Save 26%compared to  $150.00Size Type:BigREI OUTLET
- ArtilectFlatiron 185 Base Layer Leggings - Men's$99.73Save 37%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
Earn 15% in total rewards
Get 5% on all REI Co-op purchases plus the 10% Co-op Member Reward you earn on eligible full-price purchases.
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