Skip to search results
loaded 206 results
Long Sleeve Base Layer Tops
(206 products)Products (206)
Sort: Best Match
- REI Co-opMidweight Base Layer Half-Zip Top - Women's$19.83 - $59.95Underwear Weight:MidweightSize Type:Regular, Plus
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.93 - $90.00Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women'sTop Rated$39.95Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMidweight Long-Sleeve Base Layer Top - Men'sTop Rated$54.95Underwear Weight:MidweightSize Type:Regular, Big, Tall
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's$39.83 - $90.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMidweight Base Layer Half-Zip Top - Men'sTop Rated$39.93 - $59.95Underwear Weight:MidweightSize Type:Regular, Big, Tall
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's$39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Women'sTop Rated$59.83 - $115.00Underwear Weight:MidweightSize Type:Regular, Plus
- tasc PerformanceElevation Merino T-Shirt - Women'sTop Rated$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
- SmartwoolClassic Thermal Merino Crew Base Layer Top - Men'sTop Rated$85.93 - $115.00Underwear Weight:MidweightSize Type:Regular, Big
- tasc PerformanceElevation Merino T-Shirt - Men's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's$55.93 - $79.95Underwear Weight:LightweightSize Type:Regular, Big
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women'sTop Rated$78.73Save 25%compared to  $105.00Size Type:Regular, PlusREI OUTLET
- SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Women's$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, PlusREI 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
- Arc'teryxRho LT Crew Neck Base Layer Top - Men'sTop Rated$59.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Big
- IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men'sTop Rated$125.00Underwear Weight:HeavyweightSize Type:Regular, Big
- IcebreakerMerino 260 Tech Long Sleeve Crewe Base Layer Top - Men'sTop Rated$119.73Save 27%compared to  $165.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLET
- Wild RyeEvie Raglan Base Layer Top - Women'sTop Rated$39.83Save 68%compared to  $125.00Underwear Weight:LightweightSize Type:Plus
- Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Women's$79.73 - $82.73Save 24% - 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's$55.93 - $79.95Underwear Weight:LightweightSize Type:Regular
- SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's$70.93 - $95.00Underwear Weight:MidweightSize Type:Regular, Big
- REI Co-opMidweight Long-Sleeve Base Layer Top - Women's$54.95Underwear Weight:MidweightSize Type:Regular, Plus
- REI Co-opLightweight Half-Zip Base Layer Top - Women's$44.95Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$62.93 - $89.95Underwear Weight:LightweightSize Type:Regular, Big
- PatagoniaCapilene Midweight Crew Base Layer Top - Women'sTop Rated$89.00Underwear Weight:MidweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes$55.93 - $79.95Underwear Weight:LightweightSize Type:Plus
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus Sizes$29.83 - $89.95Underwear Weight:LightweightSize Type:Plus
- IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men'sTop Rated$105.00Underwear Weight:MidweightSize Type:Regular, Big
- PatagoniaCapilene Thermal Weight Zip-Neck Top - Men's$109.00Underwear Weight:HeavyweightSize Type:Regular
1–30 of 206 products
Sort: Best Match