Icebreaker Men's Base Layer Tops
(22 products)- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$69.93 - $120.00Underwear Weight:MidweightSize Type:Regular, Big
- IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men'sTop Rated$89.93 - $125.00Underwear Weight:HeavyweightSize Type:Regular, Big
- Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$79.93 - $130.00Underwear Weight:MidweightSize Type:Regular, Big
- IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$119.73Save 25%compared to  $160.00Save an extra 25% off select styles at REI Outlet, thru 3/2.Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET
- IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$99.73Save 26%compared to  $135.00Save an extra 25% off select styles at REI Outlet, thru 3/2.Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$135.00Underwear Weight:MidweightSize Type:Regular, Big
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's$78.73Save 25%compared to  $105.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- Icebreaker200 Oasis Crewe Base Layer Top - Men's$110.00Underwear Weight:MidweightSize Type:Regular, Big
- Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's$84.73Save 26%compared to  $115.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Top - Men's$150.00Underwear Weight:MidweightSize Type:Regular, Big
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men'sTop Rated$99.73Save 26%compared to  $135.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men'sTop Rated$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- Icebreaker300 MerinoFine Polar Long-Sleeve Roll-Neck Thermal Base Layer Top - Men'sTop Rated$220.00Underwear Weight:HeavyweightSize Type:Regular
- Icebreaker125 ZoneKnit Merino Long-Sleeve Crewe Thermal Top - Men'sTop Rated$93.73Save 25%compared to  $125.00Underwear Weight:UltralightweightSize Type:RegularREI OUTLET
- IcebreakerMerino 260 Tech Long Sleeve Crewe Base Layer Top - Men'sTop Rated$119.73Save 27%compared to  $165.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Base Layer Top - Men's$120.00Underwear Weight:MidweightSize Type:Big
- IcebreakerMerino 260 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's$185.00Underwear Weight:HeavyweightSize Type:Regular
- IcebreakerMerino 260 ZoneKnit Long-Sleeve Crew Base Layer Top- Men's$175.00Underwear Weight:HeavyweightSize Type:Regular
- Icebreaker150 Anatomica Crewe Base Layer Top - Men's$75.00Underwear Weight:LightweightSize Type:Regular
- IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's$160.00Underwear Weight:MidweightSize Type:Regular, Big
Get $130 in value
$30 in card rewards are yours when approved for the REI Co-op Mastercard by Mar 9. Plus, you can earn a $100 REI gift card after your first purchase. Terms apply.
Apply now- IcebreakerMerino 150 Tech Lite Skiing Yeti Base Layer T-Shirt - Men's$85.00Underwear Weight:LightweightSize Type:Regular
- IcebreakerMerino 200 Oasis+ Long-Sleeve Half-Zip Thermal Base Layer Hoodie - Men's$150.00Underwear Weight:MidweightSize Type:Regular


























































































































