Skip to search results
loaded 214 results
Base Layers: Deals
(214 products)Products (214)
Sort: Best Match
- REI Co-opMidweight Long-Sleeve Base Layer Top - Women's$26.83 - $54.95Underwear Weight:MidweightSize Type:Regular, Plus
- REI Co-opMidweight Long-Sleeve Base Layer Top - Men'sTop Rated$26.83 - $54.95Underwear Weight:MidweightSize Type:Regular, Big, Tall
- REI Co-opMidweight Base Layer Tights - Women's$26.83 - $54.95Underwear Weight:MidweightSize Type:Regular, Plus, Petite
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men'sTop Rated$29.93 - $39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$81.73Save 28%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's$66.93 - $90.00Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's$81.73Save 28%compared to  $115.00Underwear Weight:MidweightSize Type:Plus, RegularREI OUTLET
- tasc PerformanceElevation Merino T-Shirt - Men's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$85.73Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:Big, RegularREI OUTLET
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$44.83 - $90.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'Top Rated$46.73Save 28%compared to  $65.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- REI Co-opMidweight Base Layer Bottoms - Kids'Top Rated$23.93 - $34.95Underwear Weight:MidweightSize Type:Regular
- PatagoniaCapilene Midweight Base Layer Bottoms - Men'sTop Rated$59.93 - $89.00Underwear Weight:MidweightSize Type:Regular
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- tasc PerformanceElevation Merino Base Layer Bottoms - Men's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- Black DiamondSolution 150 Merino Base Layer Bottoms - Women'sTop Rated$79.73Save 27%compared to  $110.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaRose Half-Zip Base Layer Top - Women'sTop Rated$59.83 - $140.00Underwear Weight:MidweightSize Type:Regular, Plus
- PatagoniaCapilene Midweight Crew Base Layer Top - Men'sTop Rated$59.93 - $89.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino T-Shirt - Women's$39.83 - $80.00Underwear Weight:LightweightSize Type:Regular, Plus
- Arc'teryxRho Base Layer Bottoms - Women's$24.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's$92.73Save 28%compared to  $130.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'$44.73 - $46.73Save 28% - 31%compared to  $65.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Arc'teryxLana Merino Wool Crew Base Layer Top - Women's$59.93Save 33%compared to  $90.00Underwear Weight:LightweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's$54.83Save 50%compared to  $110.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Women's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaRose High-Waisted Base Layer Pants - Women's$54.83 - $130.00Underwear Weight:LightweightSize Type:Regular
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men'sTop Rated$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic All-Season Merino T-Shirt - Men's$39.83 - $80.00Underwear Weight:LightweightSize Type:Regular, Big
- Terramar2.0 Cloud Nine Half-Zip Base Layer Top - Women's$34.73Save 30%compared to  $50.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
1–30 of 214 products
Sort: Best Match