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Men's Lightweight Base Layer Tops
(30 products)Products (30)
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- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$53.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$44.83 - $89.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men'sTop Rated$44.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men'sTop Rated$79.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opLightweight Crew Base Layer Top - Men'sTop Rated$34.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- SmartwoolClassic All-Season Merino T-Shirt - Men's$95.00Underwear Weight:LightweightSize Type:Regular, Big
- tasc PerformanceElevation Merino T-Shirt - Men's$34.73 - $54.73Save 30% - 56%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- REI Co-opLightweight Half-Zip Base Layer Top - Men's$49.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Base Layer Top - Men's$69.95Underwear Weight:LightweightSize Type:Regular, Big
- Arc'teryxRho LT Zip-Neck Base Layer Top - Men'sTop Rated$120.00Underwear Weight:LightweightSize Type:Regular, Big
- Arc'teryxRho LT Crew Neck Base Layer Top - Men'sTop Rated$100.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Colorblock Crew Base Layer Top - Men's$77.83 - $130.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.73Save 25%compared to  $90.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Arc'teryxRho LT Base Layer Hoody - Men'sTop Rated$120.00Underwear Weight:LightweightSize Type:Big
- Free CountryCloud Knit Crewneck Base Layer Top - Men's$26.73Save 33%compared to  $40.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall SizesTop Rated$79.95Underwear Weight:LightweightSize Type:Tall
- Helly HansenLIFA Stripe Crew Base Layer Top - Men's$50.00Underwear Weight:LightweightSize Type:Regular, Big
- Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's$64.83 - $69.83Save 50%compared to  $130.00 - $140.00Underwear Weight:LightweightSize Type:Regular, Big
- IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$99.73Save 26%compared to  $135.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Men's$109.00Underwear Weight:LightweightSize Type:Regular, Big
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Terms apply- KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Men's$119.00Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall SizesTop Rated$89.95Underwear Weight:LightweightSize Type:Tall, Big
- Free CountryForce Grid Fleece Base Layer Top - Men'sTop Rated$29.73Save 33%compared to  $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's$84.73Save 26%compared to  $115.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Ortovox185 Rock'N'Wool Long-Sleeve Base Layer Top - Men's$120.00 - $130.00Underwear Weight:LightweightSize Type:Regular, Big
- Ortovox185 Rock'N'Wool Zip Neck Base Layer Top - Men's$130.00Underwear Weight:LightweightSize Type:Regular, Big
- Icebreaker150 Anatomica Crewe Base Layer Top - Men'sTop Rated$75.00Underwear Weight:LightweightSize Type:Regular
- Ortovox120 Comp Light Base Layer Hoody - Men's$120.00Underwear Weight:LightweightSize Type:Regular, Big
- Helly HansenHH Durawool Crew Long-Sleeve Base Layer Top - Men's$69.73Save 26%compared to  $95.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's$71.83Save 50%compared to  $145.00Underwear Weight:LightweightSize Type:Regular, Big
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