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Men's Lightweight Base Layer Tops
(31 products)Products (31)
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- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's$39.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's$55.93 - $79.95Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.93 - $90.00Underwear Weight:LightweightSize Type:Regular, Big
- tasc PerformanceElevation Merino T-Shirt - Men's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.73Save 25%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall SizesTop Rated$89.95Underwear Weight:LightweightSize Type:Tall
- REI Co-opLightweight Half-Zip Base Layer Top - Men's$44.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- REI Co-opLightweight Crew Base Layer Top - Men's$29.95Underwear Weight:LightweightSize Type:Regular, Big
- Arc'teryxRho LT Crew Neck Base Layer Top - Men'sTop Rated$59.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$62.93 - $89.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Base Layer Top - Men's$48.93 - $69.95Underwear Weight:LightweightSize Type:Regular
- Free CountryForce Grid Fleece Crew Base Layer Top - Men'sTop Rated$26.73Save 40%compared to  $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall SizesTop Rated$79.95Underwear Weight:LightweightSize Type:Tall
- SmartwoolClassic All-Season Merino T-Shirt - Men's$80.00Underwear Weight:LightweightSize Type:Regular, Big
- Free CountryMicrotech Heat Base Layer Top - Men's$28.73Save 36%compared to  $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Free CountryMicrotech Heat Cocaber Base Layer Top - Men's$21.73Save 45%compared to  $40.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Free CountryForce Grid Fleece Base Layer Top - Men's$29.73Save 33%compared to  $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Arc'teryxRho LT Zip-Neck Base Layer Top - Men'sTop Rated$84.83 - $120.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Men's$75.73Save 41%compared to  $130.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$78.73Save 25%compared to  $105.00Underwear Weight:LightweightSize Type:Big, RegularREI OUTLET
- ArtilectGoldhill 125 Zoned Crew Base Layer Top - Men's$79.73Save 38%compared to  $130.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's$130.00Underwear Weight:LightweightSize Type:Regular, Big
- Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's$135.00Underwear Weight:LightweightSize Type:Regular, Big
- Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's$84.73Save 26%compared to  $115.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$99.73Save 26%compared to  $135.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Men'sNew arrival$119.00Underwear Weight:LightweightSize Type:Regular
- KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Men'sNew arrival$109.00Underwear Weight:LightweightSize Type:Regular
- Ortovox120 Comp Light Base Layer Hoody - Men's$120.00Underwear Weight:LightweightSize Type:Regular
- Icebreaker150 Anatomica Crewe Base Layer Top - Men's$75.00Underwear Weight:LightweightSize Type:Regular, Big
- Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Top - Men's$125.00Underwear Weight:LightweightSize Type:Regular, Big
- Icebreaker125 ZoneKnit Crewe Base Layer Top - Men's$115.00Underwear Weight:LightweightSize Type:Regular
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