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Moisture Wicking Base Layers
(325 products)Products (325)
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- SeirusHeatwave Body Mapped Quarter-Zip Long-Sleeve Base Layer Top - Women's$69.83Save 50%compared to  $140.00Underwear Weight:MidweightSize Type:Regular
- Free CountryMicrotech Heat Cocaber Base Layer Top - Women's$34.73Save 30%compared to  $50.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- Icebreaker125 ZoneKnit Base Layer Leggings - Men's$125.00Underwear Weight:UltralightweightSize Type:Regular, Big
- Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Women's$85.00 - $100.00Underwear Weight:UltralightweightSize Type:Regular
- Arc'teryxRho Hoody Base Layer Top - Women'sTop Rated$104.93Save 19%compared to  $130.00Underwear Weight:LightweightSize Type:Regular
- Ortovox120 Comp Light Base Layer Hoody - Men's$120.00Underwear Weight:LightweightSize Type:Regular
- Icebreaker125 ZoneKnit Merino Thermal Leggings - Men's$93.73Save 25%compared to  $125.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:UltralightweightSize Type:Regular, BigREI OUTLET
- Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Arms of Andes300 Lightweight Alpaca Wool Pullover Base Layer Hoodie - Women's$140.00Underwear Weight:LightweightSize Type:Regular
- SpraywayEffra Jacket Base Layer Top - Women's$46.73Save 28%compared to  $64.95Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- Terramar3.0 Thermawool Half-Zip Base Layer Top - Women's$56.73Save 24%compared to  $75.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLifa Active Base Layer Bottoms - Women's$39.73Save 27%compared to  $55.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- Terramar3.0 Thermawool Base Layer Tights - Women's$52.73Save 24%compared to  $70.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectGoldhill 125 Zoned Crew Base Layer Top - Men's$79.73Save 38%compared to  $130.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Ortovox230 Competition Long-Sleeve Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Terramar2.0 Cloud Nine Midweight Performance Base Layer Scoop Shirt - Women's$29.73Save 33%compared to  $45.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Men'sTop Rated$109.73Save 31%compared to  $160.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Helly HansenHH Durawool T-Shirt - Women's$80.00Underwear Weight:LightweightSize Type:Regular
- SpraywayEffra Leggings Base Layer Bottoms - Women's$36.73Save 26%compared to  $49.95Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- Icebreaker200 Oasis 3/4 Base Layer Bottoms - Men's$95.00Underwear Weight:MidweightSize Type:Regular
- SeirusHeatwave All Season Reversible Long-Sleeve Base Layer Top - Women's$36.83Save 50%compared to  $75.00Underwear Weight:LightweightSize Type:Regular
- Helly HansenLifa Merino Midweight Base Layer Set - Kids'$69.73Save 30%compared to  $100.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLIFA ACTIVE Graphic Crew Base Layer Top - Women's$46.73Save 28%compared to  $65.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- ArtilectFlatiron 185 Quarter-Zip Base Layer Top - Women's$99.73Save 37%compared to  $160.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenHH Durawool Graphic T-Shirt - Women's$90.00Underwear Weight:LightweightSize Type:Regular
- Sweaty BettyHigh-Neck Jacquard Base Layer Top - Women'sTop Rated$82.73Save 29%compared to  $118.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Women's$98.73Save 38%compared to  $160.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectFlatiron 185 Crew Base Layer Top - Men's$96.73 - $109.73Save 30% - 31%compared to  $140.00 - $160.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- ArtilectFlatiron 185 Base Layer Leggings - Women's$109.73Save 31%compared to  $160.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's$116.73Save 31%compared to  $170.00Members use code OUT4JUL25 for $20 off $100+ at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
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