Skip to search results
loaded 234 results
Base Layers: Deals
(234 products)Products (234)
Sort: Best Match
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women'sTop Rated$99.73Save 26%compared to  $135.00Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- IcebreakerMerino 260 Tech Long Sleeve Crewe Base Layer Top - Men'sTop Rated$119.73Save 27%compared to  $165.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLET
- Kari TraaAlma Base Layer Pants - Women's$52.73Save 24%compared to  $70.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- Helly HansenLifa Merino Midweight Base Layer Set - Kids'$69.73Save 30%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Hoodie - Kids'$51.73Save 31%compared to  $75.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- PatagoniaCapilene Midweight Base Layer Bottoms - Infants'$21.73Save 25%compared to  $29.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Icebreaker125 ZoneKnit Merino Long-Sleeve Crewe Thermal Top - Men'sTop Rated$93.73Save 25%compared to  $125.00Underwear Weight:UltralightweightSize Type:Regular, BigREI OUTLET
- IcebreakerMerino 200 Oasis Base Layer Leggings - Kids'$41.93Save 30%compared to  $60.00Underwear Weight:LightweightSize Type:Regular
- Kari TraaKlara High-Waisted Base Layer Pants - Women's$62.73Save 30%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Icebreaker200 Oasis Sonebula Long-Sleeve Crewe Base Layer Top - Women's$89.73Save 25%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaLilja Long-Sleeve Base Layer Top - Women's$49.73Save 24%compared to  $66.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaFloke Base Layer Pants - Women's$64.73Save 35%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaRose Light High-Waisted Base Layer Pants - Women's$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino Base Layer Leggings - Women's$149.73Save 25%compared to  $200.00Size Type:RegularREI OUTLET
- Kari TraaFierce Base Layer Pants - Women's$39.73Save 33%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men'sTop Rated$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Men's$93.73Save 25%compared to  $125.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Macro Forms Base Layer Top - Women's$85.73Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaLilja Base Layer Pants - Women's$49.73Save 24%compared to  $66.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaRose Light Half-Zip Base Layer Top - Women's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaMalia Long-Sleeve Base Layer Top - Women's$52.73Save 24%compared to  $70.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- Kari TraaMina Base Layer Pants - Women's$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 260 Tech Thermal Base Layer Leggings - Kids'Top Rated$49.73Save 28%compared to  $70.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's$84.73Save 26%compared to  $115.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Women'sTop Rated$93.73Save 25%compared to  $125.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Thermal Base Layer Top - Women's$119.73Save 25%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaVoss Cashmere Mix Half-Zip Base Layer Top - Women's$116.73Save 35%compared to  $180.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaLucie Half-Zip Base Layer Top - Women's$67.73Save 24%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- CraftCore Dry Active Comfort Long-Sleeve Base Layer Jersey - Kids'$38.73Save 40%compared to  $64.95Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Women's$84.73Save 26%compared to  $115.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
181–210 of 234 products
Sort: Best Match