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Moisture Wicking Underwear
(335 products)Products (335)
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- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's$155.00Underwear Weight:MidweightSize Type:Regular, Big
- Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's$104.73Save 30%compared to  $150.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Women's$99.00Underwear Weight:HeavyweightSize Type:Regular
- TerramarC-Suite Fusion Thermal Pants - Women's$42.73Save 34%compared to  $65.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Arc'teryxRho Boot Cut Base Layer Bottoms - Women's$72.73Save 19%compared to  $90.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Women's$95.00Size Type:Regular
- Terramar2.0 Thermolator Crew Base Layer Top - Kids'$24.73Save 29%compared to  $35.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Arc'teryxRho LT Base Layer Bottoms - Men's$100.00Underwear Weight:LightweightSize Type:Regular, Big
- Kari TraaEmbla Wool Long-Sleeve Base Layer Top - Women's$90.00Underwear Weight:UltralightweightSize Type:Regular
- Free CountryMicrotech Heat Cocarber Base Layer Top - Women'sTop Rated$39.73Save 33%compared to  $60.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Kari TraaSmekker Long-Sleeve Base Layer Top - Women's$89.73Save 25%compared to  $120.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaRose Light Half-Zip Base Layer Top - Women's$89.73Save 25%compared to  $120.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Women's$130.00Underwear Weight:MidweightSize Type:Regular
- Terramar3.0 Thermawool Base Layer Tights - Women's$52.73Save 24%compared to  $70.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men's$130.00Size Type:Regular, Big
- IcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's$104.73Save 25%compared to  $140.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Icebreaker300 MerinoFine Polar Long-Sleeve Half-Zip Thermal Base Layer Top - Men's$250.00Underwear Weight:HeavyweightSize Type:Regular
- Kari TraaRose Long-Sleeve Base Layer Top - Women's$79.73Save 27%compared to  $110.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- SENIQWool Sculpt Merino Base Layer Leggings - Women's$128.00Underwear Weight:HeavyweightSize Type:Regular
- SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's$114.73Save 30%compared to  $165.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Size Type:RegularREI OUTLET
- ArtilectBoulder 125 Crew Long-Sleeve Base Layer Top - Women's$65.73Save 45%compared to  $120.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:LightweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Half-Zip Base Layer Hoodie - Women's$145.00Size Type:Regular
- IcebreakerSiren Sweetheart Long Underwear Top - Women's$85.00Underwear Weight:LightweightSize Type:Regular
- Kari TraaRose Light Base Layer Top - Women's$81.73Save 25%compared to  $110.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolThermal Merino Rib Turtleneck Base Layer Top - Women's$130.00Underwear Weight:MidweightSize Type:Regular
- HalfdaysJohnson Base Layer Top - Women's$95.00Underwear Weight:UltralightweightSize Type:Regular
- Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Men's$115.00Underwear Weight:LightweightSize Type:Regular, Big
- Kari TraaRose High-Waisted Base Layer Pants - Women's$130.00Underwear Weight:LightweightSize Type:Regular
- Kari TraaSval Base Layer Pants - Women's$49.73Save 28%compared to  $70.00Members use code OUTJAN26 for $20 off when you spend $100+ at REI Outlet.Underwear Weight:LightweightSize Type:RegularREI OUTLET
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