Skip to search results
loaded 38 results
Men's Midweight Base Layer Tops
(38 products)Products (38)
Sort: Best Match
- REI Co-opMidweight Long-Sleeve Base Layer Top - Men'sTop Rated$26.83 - $41.19Save 25% - 51%compared to  $54.95Underwear Weight:MidweightSize Type:Regular, Big, Tall
- REI Co-opMidweight Base Layer Half-Zip Top - Men'sTop Rated$29.83 - $44.89Save 25% - 50%compared to  $59.95Underwear Weight:MidweightSize Type:Regular, Big, Tall
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$79.93 - $125.00Underwear Weight:MidweightSize Type:Regular, Big
- PatagoniaCapilene Midweight Crew Base Layer Top - Men'sTop Rated$43.83 - $89.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men'sTop Rated$89.93 - $130.00Underwear Weight:MidweightSize Type:Regular, Big
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's$48.83 - $99.00Underwear Weight:MidweightSize Type:Regular, Big
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$120.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Base Layer Hoodie - Men's$108.73Save 25%compared to  $145.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men'sTop Rated$105.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's$99.93 - $150.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's$92.73 - $96.73Save 25% - 28%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- PatagoniaCapilene Midweight Zip-Neck Long Underwear Top - Men's$63.73Save 35%compared to  $99.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men's$89.93 - $140.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men'sNew arrival$104.73Save 25%compared to  $140.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$135.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men'sNew arrival$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's$99.93 - $155.00Underwear Weight:MidweightSize Type:Regular, Big
- Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$130.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men'sNew arrival$134.73Save 25%compared to  $180.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- SmartwoolIntraknit AS Merino Base Layer Crew Top - Men's$125.00Underwear Weight:MidweightSize Type:Regular, Big
Earn 15% in total rewards
Get 5% on all REI Co-op purchases plus the 10% Co-op Member Reward you earn on eligible full-price purchases.
Apply now
Terms apply- Arc'teryxIonia Merino Wool Base Layer Top - Men'sTop Rated$90.00Underwear Weight:MidweightSize Type:Regular, Big
- Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men'sTop Rated$120.00Underwear Weight:MidweightSize Type:Regular, Big
- Icebreaker200 Oasis Crewe Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Arc'teryxIonia Merino Wool Long-Sleeve Base Layer Top - Men'sNew arrival$120.00Underwear Weight:MidweightSize Type:Regular, Big
- SmartwoolIntraknit Thermal Merino Base Layer Colorblock Crew - Men's$96.73Save 25%compared to  $130.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's$140.00Underwear Weight:MidweightSize Type:Regular, Big
- IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men'sTop Rated$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$119.73Save 25%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Ortovox230 Competition Long-Sleeve Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's$99.93Save 35%compared to  $155.00Underwear Weight:MidweightSize Type:Regular
1–30 of 38 products
Sort: Best Match















































































































