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Wool Base Layers
(243 products)Products (243)
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- Helly HansenLIFA Merino Midweight 2-In-1 Graphic Half-Zip Base Layer Top - Women's$86.73Save 27%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's$135.00 - $150.00Underwear Weight:MidweightSize Type:Regular, Big
- Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's$107.93Save 25%compared to  $145.00Underwear Weight:LightweightSize Type:Regular, Big
- HalfdaysHallie Midweight Merino Base Layer Leggings - Women'sTop Rated$130.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'Top Rated$65.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's$92.73Save 28%compared to  $130.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- 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
- ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's$98.73Save 41%compared to  $170.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- StioBasis PeakWool Midweight Base Layer Tights - Men's$103.93Save 30%compared to  $149.00Underwear Weight:MidweightSize Type:Regular, Big
- Icebreaker200 Oasis Crewe Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Terramar3.0 Thermawool Crew Base Layer Top - Women's$52.73Save 24%compared to  $70.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaRose Capri High-Waist Base Layer Bottoms - Women's$110.00Underwear Weight:HeavyweightSize Type:Regular
- Kari TraaRose Light Capri Base Layer Pants - Women's$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Wild RyeBassett LITE Base Layer Leggings - Women's$70.93Save 20%compared to  $89.00Underwear Weight:LightweightSize Type:Regular, Plus
- IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$99.73Save 26%compared to  $135.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Women's$57.73Save 47%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectDarkhorse 185 Zoned Base Layer Leggings - Women's$82.73Save 48%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Men's$66.93Save 25%compared to  $90.00Underwear Weight:UltralightweightSize Type:Regular, Big
- Icebreaker260 ZoneKnit Long-Sleeve Crewe Base Layer Top - Women'sTop Rated$119.73Save 27%compared to  $165.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Men's$85.93Save 25%compared to  $115.00Underwear Weight:LightweightSize Type:Regular, Big
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$78.73Save 25%compared to  $105.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Arc'teryxLana Merino Wool Base Layer Tank Top - Women's$64.73Save 19%compared to  $80.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Kari TraaSmekker Long-Sleeve Base Layer Top - Women's$89.73Save 25%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaAnna Half-Zip Base Layer Top - Women's$83.93 - $120.00Underwear Weight:MidweightSize Type:Regular
- Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Women's$84.73Save 26%compared to  $115.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaRose Light Base Layer Top - Women's$81.73Save 25%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip Top - Kids'$51.93 - $70.00Underwear Weight:MidweightSize Type:Regular
- Kari TraaKaia Base Layer Set - Women's$90.93Save 30%compared to  $130.00Underwear Weight:LightweightSize Type:Regular
- Arc'teryxRho Merino Wool Base Layer Bottoms - Men's$120.00Underwear Weight:LightweightSize Type:Big
- Kari TraaRose Half-Zip Base Layer Top - Women'sTop Rated$89.73Save 25%compared to  $120.00Underwear Weight:HeavyweightSize Type:PlusREI OUTLET
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