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Base Layer Tops: Deals
(92 products)Products (92)
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- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$56.83 - $115.00Underwear Weight:MidweightSize Type:Regular, Plus
- Sale Ends Dec 29IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$78.69Save 25%compared to  $105.00Underwear Weight:MidweightSize Type:Regular, Big
- Sale Ends Dec 29IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women'sTop Rated$78.69Save 25%compared to  $105.00Underwear Weight:MidweightSize Type:Regular, Plus
- Sale Ends Dec 29Black DiamondSolution 150 Merino Base Layer Crew Top - Women'sTop Rated$67.49Save 50%compared to  $135.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's$64.99Save 50%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Sale Ends Dec 29Kari TraaEdith Half-Zip Base Layer Top - Women's$54.99Save 50%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Free CountryForce Grid Fleece Base Layer Top - Women's$34.73Save 36%compared to  $55.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- tasc PerformanceElevation Merino T-Shirt - Women's$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- Sale Ends Dec 29SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's$64.99Save 50%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29Kari TraaSara Long-Sleeve Base Layer Top - Women's$49.99Save 50%compared to  $100.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's$27.93 - $39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- tasc PerformanceElevation Merino T-Shirt - Men's$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Sale Ends Dec 29IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's$79.99Save 50%compared to  $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Sale Ends Dec 29Kari TraaRose Light Half-Zip Base Layer Top - Women's$59.99Save 50%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29Icebreaker260 Tech Long-Sleeve Crewe Base Layer Top - Women'sTop Rated$93.69Save 25%compared to  $125.00Underwear Weight:HeavyweightSize Type:Regular, Plus
- Sale Ends Dec 29Helly HansenLIFA Merino Midweight 2-In-1 Graphic Half-Zip Base Layer Top - Women's$59.99Save 50%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29Helly HansenLIFA Merino Midweight Graphic Crew Base Layer - Women's$54.99Save 50%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Free CountryForce Grid Fleece Base Layer Top - Men'sTop Rated$29.73Save 33%compared to  $45.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- Sale Ends Dec 29IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$67.49Save 50%compared to  $135.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- Sale Ends Dec 29Kari TraaFierce Long-Sleeve Base Layer Top - Women's$32.99Save 50%compared to  $66.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29Terramar2.0 Cloud Nine Half-Zip Base Layer Top - Women's$24.99Save 50%compared to  $50.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men'sTop Rated$93.69Save 25%compared to  $125.00Underwear Weight:HeavyweightSize Type:Regular, Big
- Sale Ends Dec 29Kari TraaSara Half-Zip Base Layer Top - Women's$54.99Save 50%compared to  $110.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$86.19Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, Big
- Free CountryCloud Knit Crewneck Base Layer Top - Men's$26.73Save 33%compared to  $40.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Sale Ends Dec 29IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's$101.19Save 25%compared to  $135.00Underwear Weight:MidweightSize Type:Regular, Big
- Sale Ends Dec 29Kari TraaRose Light Base Layer Top - Women's$54.99Save 50%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's$64.99Save 50%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Sale Ends Dec 29Helly HansenGraphic Lifa Merino Base Layer Set - Kids'$54.99Save 50%compared to  $110.00Underwear Weight:HeavyweightSize 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
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