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Men's Base Layer Tops
(82 products)Products (82)
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- Icebreaker125 ZoneKnit Merino Long-Sleeve Crewe Thermal Top - Men'sTop Rated$93.73Save 25%compared to $125.00Underwear Weight:UltralightweightSize Type:Regular, BigREI OUTLET
- Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's$135.00Underwear 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
- ArtilectGoldhill 125 Zoned Crew Base Layer Top - Men's$79.73Save 38%compared to $130.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Icebreaker260 ZoneKnit Long-Sleeve Crewe Thermal Top - Men'sTop Rated$165.00Underwear Weight:HeavyweightSize Type:Regular
- KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Men'sNew arrival$109.00Underwear Weight:LightweightSize Type:Regular, Big
- Helly HansenLifa Merino Midweight Half-Zip Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular
- Ortovox120 Comp Light Base Layer Hoody - Men's$120.00Underwear Weight:LightweightSize Type:Regular
- KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Men'sNew arrival$119.00Underwear Weight:LightweightSize Type:Regular, Big
- IcebreakerMerino 260 Tech Long-Sleeve Turtleneck Base Layer - Men'sTop Rated$135.00Underwear Weight:MidweightSize Type:Big
- Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Hoodie - Men's$89.73Save 25%compared to $120.00Underwear Weight:MidweightSize Type:BigREI OUTLET
- Helly HansenLifa Merino Midweight Crew Base Layer Top - Men's$100.00Underwear Weight:MidweightSize Type:Regular
- IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men'sTop Rated$89.73Save 25%compared to $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Free CountryForce Grid Fleece Base Layer Top - Men's$29.73Save 33%compared to $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Free CountryMicrotech Heat Base Layer Top - Men's$28.73Save 36%compared to $45.00Underwear Weight:LightweightSize Type:BigREI OUTLET
- Ortovox230 Competition Long-Sleeve Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's$130.00Underwear Weight:LightweightSize Type:Regular, Big
- IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Men's$93.73Save 25%compared to $125.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's$155.00Underwear Weight:MidweightSize Type:Regular, Big
- Ortovox230 Competition Zip-Neck Base Layer Top - Men's$120.00Underwear Weight:MidweightSize Type:Regular, Big
- ArtilectFlatiron 185 Crew Base Layer Top - Men's$96.73 - $109.73Save 30% - 31%compared to $140.00 - $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
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