Skip to search results
loaded 67 results
Merino Wool Base Layer Bottoms
(67 products)Products (67)
Sort: Best Match
- REI Co-opMerino 185 Base Layer Bottoms - Men's$39.83 - $79.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opHeavyweight Merino Base Layer Bottoms - Women's$49.83 - $99.95Underwear Weight:HeavyweightSize Type:Regular, Plus
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$84.73Save 26%compared to $115.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$125.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Men'sTop Rated$125.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's$68.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Plus
- tasc PerformanceElevation Merino Base Layer Bottoms - Men's$46.73Save 40%compared to $79.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- Kari TraaKlara High-Waisted Base Layer Pants - Women's$62.73 - $66.73Save 25% - 30%compared to $90.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- REI Co-opMerino 185 Base Layer Bottoms - Women's$79.95Underwear Weight:LightweightSize Type:Regular
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$46.73Save 40%compared to $79.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- HalfdaysHallie Midweight Merino Base Layer Leggings - Women'sTop Rated$64.83 - $130.00Underwear Weight:MidweightSize Type:Regular
- REI Co-opMerino Midweight Base Layer Bottoms - Kids'Top Rated$24.83Save 50%compared to $49.95Underwear Weight:MidweightSize Type:Regular
- Arc'teryxSatoro Merino Wool Base Layer Bottoms - Women'sNew arrival$95.73Save 20%compared to $120.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- REI Co-opHeavyweight Merino Base Layer Bottoms - Men'sTop Rated$99.95Underwear Weight:HeavyweightSize Type:Regular, Big, Tall
- REI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes$39.83Save 50%compared to $79.95Underwear Weight:LightweightSize Type:Plus
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's$100.00Underwear Weight:LightweightSize Type:Regular, Big
- Icebreaker260 Tech High-Rise Base Layer Leggings - Women'sTop Rated$125.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's$150.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men'sTop Rated$115.00Underwear Weight:MidweightSize Type:Regular, Big
- IcebreakerMerino 200 Oasis Thermal Leggings - Women'sTop Rated$51.83 - $120.00Underwear Weight:MidweightSize Type:Regular, Plus
Earn 15% in total rewards
Get 5% on all REI Co-op purchases plus the 10% Co-op Member Reward you earn on eligible full-price purchases.
Apply now
Terms apply- SmartwoolClassic All-Season Merino 3/4 Base Layer Bottoms - Men's$85.00Underwear Weight:LightweightSize Type:Regular, Big
- Icebreaker260 Tech Base Layer Leggings - Women's$61.83 - $125.00Underwear Weight:HeavyweightSize Type:Regular, Plus
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'Top Rated$48.73Save 25%compared to $65.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Merino 3/4 Base Layer Bottoms - Women's$89.73Save 25%compared to $120.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's Plus Sizes$68.83 - $125.00Underwear Weight:MidweightSize Type:Plus
- Kari TraaSmekker High-Waist Base Layer Pants - Women's$130.00Underwear Weight:MidweightSize Type:Regular
- IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men'sTop Rated$120.00Underwear Weight:MidweightSize Type:Regular, Big
- Kari TraaAnna High-Waist Base Layer Pants - Women's$110.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Active Base Layer Bottoms - Men's$81.73Save 25%compared to $110.00Save up to 30% extra on your REI Outlet purchaseUnderwear Weight:MidweightSize Type:BigREI OUTLET
- Icebreaker260 Merino Tech Thermal Leggings with Fly - Men'sTop Rated$140.00Underwear Weight:HeavyweightSize Type:Regular, Big
1–30 of 67 products
Sort: Best Match

























































































































