Skip to search results
loaded 447 results
Base Layers
(447 products)Products (447)
Sort: Best Match
- PatagoniaCapilene Midweight Base Layer Bottoms - Kids'$18.83Save 51%compared to  $39.00
- REI Co-opMerino Midweight Base Layer Crew Top - Kids'Top Rated$49.95
- SmartwoolClassic Thermal Merino Lettuce Edge Base Layer Bottoms - Women's$82.73Save 28%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Free CountryMicrotech Heat Cocaber Base Layer Top - Women's$34.73Save 30%compared to  $50.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's$130.00
- REI Co-opMerino Midweight Base Layer Bottoms - Kids'Top Rated$49.95
- CraftCore Dry Active Comfort Base Layer Pants - Women's$29.73Save 33%compared to  $44.95Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Men's$115.00
- Terramar3.0 Thermawool Crew Base Layer Top - Women's$49.73 - $52.73Save 24% - 28%compared to  $70.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- BurtonMidweight Base Layer Pants - Women's$19.83Save 69%compared to  $64.95
- SpraywayEffra Crew Base Layer Top - Women's$36.73Save 26%compared to  $49.95Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- HalfdaysSophia Base Layer Leggings - Women's$49.83Save 41%compared to  $85.00
- Helly HansenGraphic Lifa Merino Base Layer Set - Kids'$74.73Save 32%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Kari TraaFryd Base Layer Pants - Women's$42.73Save 22% - 28%compared to  $55.00 - $60.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men'sTop Rated$105.00
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's$130.00
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$85.73Save 25%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- PatagoniaCapilene Midweight Base Layer Bottoms - Women's$89.00
- Ortovox230 Competition Long Base Layer Pants - Men's$100.00
- SmartwoolIntraknit Active Base Layer Bottoms - Men's$81.73Save 25%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Helly HansenLifa Merino Midweight Base Layer Pants - Men's$100.00 - $105.00
- Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Women'sTop Rated$105.00
- Kari TraaLucie Base Layer Pants - Women's$58.73Save 26%compared to  $80.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Ortovox120 Comp Light Short Base Layer Pants - Men's$70.00
- Ortovox120 Comp Light Base Layer Hoody - Men's$59.83 - $120.00
- Hootie HooTorrent Layering Fleece Base Layer Set - Toddler'sNew arrival$75.00
- Kari TraaRose Base Layer Hoodie - Women's$97.73Save 24%compared to  $130.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Icebreaker200 Oasis Sonebula Long-Sleeve Crewe Base Layer Top - Women's$89.73Save 25%compared to  $120.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women'sTop Rated$49.83 - $105.00
- Kari TraaRose Light High-Waisted Base Layer Pants - Women's$82.73Save 24%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
121–150 of 447 products
Sort: Best Match