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Women's Base Layer Tops
(138 products)Products (138)
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- REI Co-opMidweight Long-Sleeve Base Layer Top - Women's$26.83 - $38.39Save 30% - 51%compared to  $54.95Underwear Weight:MidweightSize Type:Regular, Plus
- Sale Ends Sep 1REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women'sTop Rated$27.89Save 30%compared to  $39.95Underwear Weight:LightweightSize Type:Regular, Plus
- Sale Ends Sep 1REI Co-opMidweight Base Layer Half-Zip Top - Women's$41.89Save 30%compared to  $59.95Underwear Weight:MidweightSize Type:Regular, Plus
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$81.73Save 28%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- Sale Ends Sep 1REI Co-opLightweight Half-Zip Base Layer Top - Women's$31.39Save 30%compared to  $44.95Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's$66.93 - $90.00Underwear Weight:LightweightSize Type:Regular, Plus
- Sale Ends Sep 1REI Co-opLightweight Crew Base Layer Top - Women'sTop Rated$20.89Save 30%compared to  $29.95Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Women's$89.73Save 25%compared to  $120.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaEmbla Wool Long-Sleeve Base Layer Top - Women's$39.83 - $90.00Underwear Weight:UltralightweightSize Type:Regular
- SmartwoolClassic All-Season Merino T-Shirt - Women's$80.00Underwear Weight:LightweightSize Type:Regular, Plus
- Kari TraaRose Half-Zip Base Layer Top - Women'sTop Rated$59.83 - $140.00Underwear Weight:MidweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's$79.95Underwear Weight:LightweightSize Type:Regular
- Kari TraaFryd Base Layer Top - Women's$29.83 - $65.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$115.00Underwear Weight:MidweightSize Type:Regular, Plus
- Terramar2.0 Cloud Nine Half-Zip Base Layer Top - Women's$34.73Save 30%compared to  $50.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- REI Co-opMerino 185 Base Layer Top - Women's$69.95Underwear Weight:LightweightSize Type:Regular
- Arc'teryxLana Merino Wool Crew Base Layer Top - Women's$59.93Save 33%compared to  $90.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women'sTop Rated$89.95Underwear Weight:LightweightSize Type:Regular
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women'sTop Rated$120.00Underwear Weight:MidweightSize Type:Regular, Plus
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women'sTop Rated$105.00Underwear Weight:MidweightSize Type:Regular, Plus
- Kari TraaElse Half-Zip Base Layer Top - Women's$76.73Save 30%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaEmbla Wool Base Layer Top - Women's$29.83Save 50%compared to  $60.00Underwear Weight:UltralightweightSize Type:Regular
- Helly HansenLIFA Merino Midweight Crew Base Layer Top - Women's$69.73Save 30%compared to  $100.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- Arc'teryxRho Zip-Neck Base Layer Top - Women'sTop Rated$79.93 - $120.00Underwear Weight:LightweightSize Type:Regular, Plus
- Black DiamondSolution 150 Merino Base Layer Crew Top - Women'sTop Rated$99.73Save 26%compared to  $135.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Half-Zip Thermal Base Layer Top - Women'sTop Rated$84.73Save 26%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women'sTop Rated$99.73Save 26%compared to  $135.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:HeavyweightSize Type:Regular, PlusREI OUTLET
- Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's$104.73Save 30%compared to  $150.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Arc'teryxLana Merino Wool Base Layer Tank Top - Women's$59.93Save 33%compared to  $90.00Underwear Weight:LightweightSize Type:Regular
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