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Long Sleeve Men's Base Layers
(83 products)Products (83)
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- REI Co-opMidweight Long-Sleeve Base Layer Top - Men'sTop Rated$26.83 - $38.39Save 30% - 51%compared to  $54.95
- Sale Ends Sep 1REI Co-opMidweight Base Layer Half-Zip Top - Men'sTop Rated$41.89Save 30%compared to  $59.95
- Sale Ends Sep 1REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men'sTop Rated$27.89Save 30%compared to  $39.95
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$51.83 - $105.00
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$44.83 - $90.00
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men'sTop Rated$29.83 - $79.95
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$89.95
- Sale Ends Aug 28tasc PerformanceElevation Merino T-Shirt - Men's$39.49Save 50%compared to  $79.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Arc'teryxIonia Merino Wool Base Layer Hoody - Men'sTop Rated$98.93Save 29%compared to  $140.00
- Sale Ends Sep 1REI Co-opLightweight Half-Zip Base Layer Top - Men'sTop Rated$31.39Save 30%compared to  $44.95
- Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's$54.83Save 50%compared to  $110.00
- SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's$95.00
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$85.73Save 25%compared to  $115.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- PatagoniaCapilene Midweight Crew Base Layer Top - Men'sTop Rated$59.93 - $89.00
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$115.00
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men'sTop Rated$89.73Save 25%compared to  $120.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.73Save 25%compared to  $90.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Arc'teryxRho LT Zip-Neck Base Layer Top - Men'sTop Rated$120.00
- PatagoniaCapilene Thermal Weight Zip-Neck Top - Men's$69.93 - $109.00
- PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men'sTop Rated$69.93 - $99.00
- SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men'sTop Rated$120.00
- Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men'sTop Rated$120.00
- REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's$99.95
- Ortovox230 Competition Zip-Neck Base Layer Top - Men's$59.83Save 50%compared to  $120.00
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$78.73Save 25%compared to  $105.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men's$99.73Save 26%compared to  $135.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Men'sTop Rated$79.73Save 27%compared to  $110.00Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- CraftCORE Dry Active Comfort Base Layer Top - Men's$39.73Save 38%compared to  $64.95Members use code LABORDAY2025 for an extra 20% off at REI OutletREI OUTLET
- KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Men's$119.00
- REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's$104.95
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