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Women's Base Layer Tops
(113 products)Products (113)
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- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Base Layer Top - Women's$59.83 - $120.00Underwear Weight:MidweightSize Type:Regular
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus Sizes$39.83Save 55%compared to  $89.95Underwear Weight:LightweightSize Type:Plus
- Icebreaker125 Cool-Lite Merino Blend Sphere III Scoop T-Shirt - Women's$90.00Underwear Weight:LightweightSize Type:Regular
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's$49.83 - $99.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Women's$115.73Save 25%compared to  $155.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaAnna Half-Zip Base Layer Top - Women's$59.83 - $120.00Underwear Weight:MidweightSize Type:Regular
- SmartwoolClassic Thermal Merino Half-Zip Base Layer Hoodie - Women'sNew arrival$108.73Save 25%compared to  $145.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends TodayArtilectDarkhorse 185 Zoned Crew Base Layer Top - Women's$60.73Save 62%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaEmbla Wool Long-Sleeve Base Layer Top - Women's$44.83 - $90.00Underwear Weight:UltralightweightSize Type:Regular
- Arc'teryxRho Zip-Neck Base Layer Top - Women'sTop Rated$120.00Underwear Weight:LightweightSize Type:Regular, Plus
- Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women'sTop Rated$115.00 - $130.00Underwear Weight:LightweightSize Type:Regular, Plus
- Kari TraaSmekker Half-Zip Base Layer Top - Women's$140.00Underwear Weight:LightweightSize Type:Regular
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's$63.73Save 35%compared to  $99.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaSmekker Half-Zip Base Layer Top - Women's$89.73Save 30%compared to  $130.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Mock Neck Base Layer Top - Women'sNew arrival$104.73Save 25%compared to  $140.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolClassic All-Season Merino Base Layer Long-Sleeve Shirt - Women's$66.73Save 25%compared to  $90.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Icebreaker260 Tech Long-Sleeve Crewe Base Layer Top - Women'sTop Rated$125.00 - $140.00Underwear Weight:HeavyweightSize Type:Regular, Plus
- PatagoniaCapilene Thermal Weight Zip-Neck Long Underwear Top - Women's$49.93 - $115.00Underwear Weight:HeavyweightSize Type:Regular
- Free CountryForce Grid Fleece Base Layer Top - Women's$34.73Save 36%compared to  $55.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- IcebreakerSiren Sweetheart Long Underwear Top - Women's$85.00Underwear Weight:LightweightSize Type:Regular
- SENIQWool Sculpt Merino Mock-Neck Long-Sleeve Base Layer Shirt - Women's$99.93 - $128.00Underwear Weight:HeavyweightSize Type:Regular
- Arc'teryxLana Merino Wool Base Layer Tank Top - Women's$80.00Underwear Weight:LightweightSize Type:Regular, Plus
- Helly HansenHH Durawool Crew Long-Sleeve Shirt - Women's$64.73Save 28%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Sale Ends TodayArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's$66.73Save 60%compared to  $170.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- HalfdaysJohnson Base Layer Top - Women's$46.83Save 50%compared to  $95.00Underwear Weight:UltralightweightSize Type:Regular
- Black DiamondSolution 150 Merino Base Layer Crew Top - Women'sTop Rated$99.73Save 26%compared to  $135.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Women's$93.73Save 25%compared to  $125.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit AS Merino Base Layer Crew Top - Women's$125.00Underwear Weight:MidweightSize Type:Regular
- PatagoniaCapilene Thermal Weight Zip-Neck Base Layer Top - Women's$69.73Save 36%compared to  $109.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
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