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Lightweight Base Layer Tops
(94 products)Products (94)
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- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's$55.93 - $79.95Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's$62.93 - $90.00Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men'sTop Rated$66.93 - $90.00Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino T-Shirt - Men's$59.93 - $80.00Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women'sTop Rated$44.83 - $89.95Underwear Weight:LightweightSize Type:Regular
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women'sTop Rated$39.95Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's$55.93 - $79.95Underwear Weight:LightweightSize Type:Regular
- SmartwoolClassic All-Season Merino T-Shirt - Women's$55.93 - $80.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's$39.95Underwear Weight:LightweightSize Type:Regular, Big
- Arc'teryxRho LT Crew Neck Base Layer Top - Men'sTop Rated$59.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Base Layer Top - Women's$48.93 - $69.95Underwear Weight:LightweightSize Type:Regular
- REI Co-opLightweight Crew Base Layer Top - Men's$29.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opLightweight Crew Base Layer Top - Women's$29.95Underwear Weight:LightweightSize Type:Regular, Plus
- tasc PerformanceElevation Merino T-Shirt - Women'sTop Rated$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall SizesTop Rated$89.95Underwear Weight:LightweightSize Type:Tall
- 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 Half-Zip Base Layer Top - Men'sTop Rated$62.93 - $89.95Underwear Weight:LightweightSize Type:Regular, Big
- Arc'teryxRho LT Zip-Neck Base Layer Top - Men'sTop Rated$84.83 - $120.00Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opLightweight Half-Zip Base Layer Top - Women's$44.95Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Base Layer Top - Men's$48.93 - $69.95Underwear Weight:LightweightSize Type:Regular
- REI Co-opLightweight Half-Zip Base Layer Top - Men's$44.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes$55.93 - $79.95Underwear Weight:LightweightSize Type:Plus
- Terramar1.0 All-Season Lightweight Merino Wool T-Shirt - Women's$34.73Save 30%compared to  $50.00Underwear Weight:LightweightSize Type:RegularREI 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
- REI Co-opMerino 185 Base Layer Top - Women's Plus Sizes$48.93 - $69.95Underwear Weight:LightweightSize Type:Plus
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus Sizes$44.83 - $89.95Underwear Weight:LightweightSize Type:Plus
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall SizesTop Rated$79.95Underwear Weight:LightweightSize Type:Tall
- Helly HansenHH Durawool Crew Long-Sleeve Base Layer - Women's$90.00Underwear Weight:LightweightSize Type:Regular
- Arc'teryxRho Hoody Base Layer Top - Women'sTop Rated$104.93Save 19%compared to  $130.00Underwear Weight:LightweightSize Type:Regular
- Arms of Andes160 Ultralight Alpaca Wool Crewneck Base Layer T-Shirt - Men's$75.00Underwear Weight:UltralightweightSize Type:Regular, Big
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