Skip to search results
loaded 373 results
Long Underwear
(373 products)Products (373)
Sort: Best Match
- SmartwoolClassic Thermal Merino Lettuce Edge Base Layer Bottoms - Women's$82.73Save 28%compared to  $115.00REI OUTLET
- Free CountryMicrotech Heat Base Layer Top - Men's$28.73Save 36%compared to  $45.00REI OUTLET
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's$33.83Save 62%compared to  $90.00
- Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's$130.00
- Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Women's$85.00 - $100.00
- Ortovox230 Competition Long Base Layer Pants - Men's$100.00
- SeirusHeatwave Body Mapped Quarter-Zip Long-Sleeve Base Layer Top - Women's$69.83Save 50%compared to  $140.00
- REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes$79.95
- Kari TraaRose High-Waisted Base Layer Pants - Women's$110.00
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Pants - Women's$69.73Save 30%compared to  $100.00REI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$135.00
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Macro Forms Base Layer Top - Women's$85.73Save 25%compared to  $115.00REI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men'sTop Rated$89.73Save 25%compared to  $120.00REI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Women'sTop Rated$93.73Save 25%compared to  $125.00REI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Men's$93.73Save 25%compared to  $125.00REI OUTLET
- Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's$110.00
- REI Co-opLightweight Half-Zip Base Layer Top - Men's$44.95
- Kari TraaFryd Base Layer Top - Women's$19.83 - $60.00
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall SizesTop Rated$79.95
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall SizesTop Rated$89.95
- SmartwoolIntraknit Active Base Layer Crew Shirt - Men's$81.73Save 25%compared to  $110.00REI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Half-Zip Thermal Base Layer Top - Women'sTop Rated$84.73Save 26%compared to  $115.00REI OUTLET
- REI Co-opMerino 185 Base Layer Top - Women's$48.93 - $69.95
- PatagoniaCapilene Midweight Crew Base Layer Top - Men'sTop Rated$89.00
- Beyond YogaSpacedye Simplicity Long Bra$48.93 - $70.00
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$85.73Save 25%compared to  $115.00REI OUTLET
- Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women'sTop Rated$115.00
- IcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's$104.73Save 25%compared to  $140.00REI OUTLET
- Arc'teryxIonia Merino Wool Base Layer Hoody - Men'sTop Rated$140.00
- PatagoniaCapilene Midweight Crew Base Layer Top - Women'sTop Rated$89.00
91–120 of 373 products
Sort: Best Match