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Long Sleeve Women's Base Layer Tops
(130 products)Products (130)
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- Outdoor ResearchAlpine Onset Merino 150 Crew Base Layer Top - Women's$99.00Underwear Weight:LightweightSize Type:Regular, Plus
- Sale Ends Aug 28ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Women's$79.99Save 50%compared to  $160.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Arms of Andes300 Lightweight Alpaca Wool Pullover Base Layer Hoodie - Women's$140.00Underwear Weight:LightweightSize Type:Regular
- Terramar2.0 Cloud Nine Midweight Performance Thermal Turtleneck - Women's$32.73Save 31%compared to  $48.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- ArtilectBoulder 125 Crew Long-Sleeve Base Layer Top - Women's$75.73Save 36%compared to  $120.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Crew One-Piece - Women'sNew arrival$250.00Underwear Weight:MidweightSize Type:Regular
- ArtilectFlatiron 185 Quarter-Zip Base Layer Top - Women's$99.73Save 37%compared to  $160.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- The North FaceFD Pro 160 Base Layer Crew Top - Women's$70.00Underwear Weight:MidweightSize Type:Regular
- Sale Ends Aug 28ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's$84.99Save 50%compared to  $170.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- StioBasisPeak Wool Midweight Half-Zip Base Layer Top - Women'sNew arrival$139.00Underwear Weight:MidweightSize Type:Regular
- IcebreakerMerino Long-Sleeve Roll-Neck Base Layer Top - Women's$220.00Underwear Weight:HeavyweightSize Type:Regular
- Helly HansenLIFA Merino Midweight Graphic Crew Base Layer - Women'sNew arrival$79.73Save 27%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaRose Light Base Layer Top - Women's$82.73Save 24%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaMalia Half-Zip Base Layer Top - Women'sNew arrival$59.73Save 25%compared to  $80.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:Regular, PlusREI OUTLET
- Kari TraaLune Long-Sleeve Base Layer Top - Women's$41.73Save 35%compared to  $65.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:HeavyweightSize Type:RegularREI OUTLET
- IcebreakerSiren Sweetheart Long Underwear Top - Women's$85.00Underwear Weight:LightweightSize Type:Regular
- Kari TraaEdith Long-Sleeve Base Layer Top - Women's$74.73Save 25%compared to  $100.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino Blend 260 ZoneKnit Seamless Long-Sleeve Crew Base Layer Top - Women's$150.00Underwear Weight:MidweightSize Type:Regular
- Kari TraaEloise Long-Sleeve Base Layer Top - Women'sNew arrival$52.73Save 24%compared to  $70.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Base Layer Top - Women's$120.00Underwear Weight:MidweightSize Type:Regular
- Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Top - Men's$150.00Underwear Weight:MidweightSize Type:Regular, Plus
- Helly HansenOdin Power Stretch Half-Zip Base Layer Top - Women's$88.73Save 40%compared to  $150.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaFryd Long-Sleeve Base Layer Top - Women's$44.73Save 25%compared to  $60.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Women'sTop Rated$93.73Save 25%compared to  $125.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaVilma Long-Sleeve Base Layer Top - Women'sNew arrival$67.73Save 24%compared to  $90.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
- Kari TraaEloise Half-Zip Base Layer Top - Women'sNew arrival$59.73Save 25%compared to  $80.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:LightweightSize Type:RegularREI OUTLET
- Kari TraaSara Long-Sleeve Base Layer Top - Women'sNew arrival$74.73Save 25%compared to  $100.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Kari TraaSmekker Half-Zip Base Layer Top - Women's$140.00Underwear Weight:LightweightSize Type:Regular
- Helly HansenLIFA Merino Midweight Graphic Base Layer Crew Top - Women's$110.00Underwear Weight:MidweightSize Type:Regular
- Kari TraaVilma Half-Zip Base Layer Top - Women'sNew arrival$74.73Save 25%compared to  $100.00Members use code LABORDAY2025 for an extra 20% off at REI OutletUnderwear Weight:MidweightSize Type:RegularREI OUTLET
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