Skip to search results
loaded 122 results
Base Layer Tops: Deals
(122 products)Products (122)
Sort: Best Match
- Helly HansenLifa Merino Midweight Graphic Base Layer Top - Women'sTop Rated$79.73 - $82.73Save 24% - 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaRose Base Layer Hoodie - Women's$97.73Save 24%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- ArtilectFlatiron 185 Quarter-Zip Base Layer Top - Women's$99.73Save 37%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Terramar2.0 Cloud Nine Midweight Performance Base Layer Scoop Shirt - Women's$29.73Save 33%compared to  $45.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Terramar2.0 Cloud Nine Midweight Performance Thermal Turtleneck - Women's$32.73Save 31%compared to  $48.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Men'sTop Rated$109.73Save 31%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectFlatiron 185 Crew Base Layer Top - Men's$96.73 - $109.73Save 30% - 31%compared to  $140.00 - $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Terramar1.0 All-Season Lightweight Merino Wool T-Shirt - Women's$34.73Save 30%compared to  $50.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Picture Organic ClothingNangha Base Layer Top - Men's$44.83Save 50%compared to  $90.00Underwear Weight:MidweightSize Type:Regular
- Kari TraaEmbla Wool Base Layer Top - Women's$29.83Save 50%compared to  $60.00Underwear Weight:UltralightweightSize Type:Regular
- Kari TraaRose Light Base Layer Top - Women's$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Women's$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Free CountryMicrotech Heat Cocarber Base Layer Top - Women's$39.73Save 33%compared to  $60.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Women's$93.73Save 25%compared to  $125.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- ArtilectBoulder 125 Crew Long-Sleeve Base Layer Top - Women's$75.73Save 36%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaLune Long-Sleeve Base Layer Top - Women's$41.73Save 35%compared to  $65.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaAlma Half-Zip Base Layer Top - Women's$59.73Save 25%compared to  $80.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- Wild RyeEvie Raglan Base Layer Top - Women's$69.73Save 41%compared to  $119.00Underwear Weight:LightweightSize 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
- CraftCore Dry Active Comfort Long-Sleeve Base Layer Jersey - Kids'$38.73Save 40%compared to  $64.95Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaRose Long-Sleeve Base Layer Top - Women's$79.73Save 27%compared to  $110.00Underwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- Hot ChillysPeach Skins T-Neck Base Layer Top - Kids'$32.73Save 34%compared to  $50.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Women's$98.73Save 38%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaSara Half-Zip Base Layer Top - Women'sNew arrival$79.73Save 27%compared to  $110.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's$116.73Save 31%compared to  $170.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaElse Long-Sleeve Base Layer Top - Women'sNew arrival$69.73Save 30%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaFierce Long-Sleeve Base Layer Top - Women's$46.73Save 29%compared to  $66.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerSiren Long-Sleeve Sweetheart Base Layer Shirt - Women'sNew arrival$62.73Save 26%compared to  $85.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaFaith Half-Zip Base Layer Top - Women'sNew arrival$86.73Save 27%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Icebreaker260 ZoneKnit Long-Sleeve Crewe Base Layer Top - Women'sTop Rated$119.73Save 27%compared to  $165.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
91–120 of 122 products
Sort: Best Match