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Lightweight Base Layers
(128 products)Products (128)
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- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men'sTop Rated$39.83 - $79.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women'sTop Rated$39.95Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's$66.93 - $90.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men'sTop Rated$49.83 - $89.95Underwear Weight:LightweightSize Type:Regular, Big
- SmartwoolClassic All-Season Merino T-Shirt - Women's$59.93 - $80.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men'sTop Rated$39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- REI Co-opMerino 185 Base Layer Top - Women's$48.93 - $69.95Underwear Weight:LightweightSize Type:Regular
- 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$62.93 - $89.95Underwear Weight:LightweightSize Type:Regular
- REI Co-opLightweight Base Layer Bottoms - Men'sTop Rated$39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- REI Co-opMerino 185 Base Layer Bottoms - Men's$79.95Underwear Weight:LightweightSize Type:Regular, Big
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's$79.95Underwear Weight:LightweightSize Type:Regular
- REI Co-opLightweight Crew Base Layer Top - Women'sTop Rated$29.95Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opLightweight Half-Zip Base Layer Top - Women's$44.95Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opLightweight Crew Base Layer Top - Men'sTop Rated$29.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
- Arc'teryxRho LT Zip-Neck Base Layer Top - Men'sTop Rated$84.93 - $120.00Underwear Weight:LightweightSize Type:Big, Regular
- REI Co-opLightweight Base Layer Tights - Women'sTop Rated$39.95Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolIntraknit Active Base Layer Bottoms - Women's$59.83Save 45%compared to  $110.00Underwear Weight:LightweightSize Type:Regular
- Arc'teryxRho LT Crew Neck Base Layer Top - Men'sTop Rated$70.93Save 29%compared to  $100.00Underwear Weight:LightweightSize Type:Big
- CraftActive Intensity Base Layer Pants - Women's$31.73Save 42%compared to  $54.95Underwear Weight:LightweightSize Type:RegularREI OUTLET
- REI Co-opLightweight Crew Base Layer Top - Infants'/Toddlers'Top Rated$19.95Underwear Weight:LightweightSize Type:Regular
- REI Co-opMerino 185 Base Layer Bottoms - Women's$79.95Underwear Weight:LightweightSize Type:Regular
- tasc PerformanceElevation Merino T-Shirt - Men's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's$90.00Underwear Weight:LightweightSize Type:Regular, Plus
- SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's$90.00Underwear Weight:LightweightSize Type:Regular, Big
- tasc PerformanceElevation Merino Base Layer Bottoms - Women's$49.73Save 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET
- REI Co-opMerino 185 Base Layer Top - Women's Plus Sizes$48.93 - $69.95Underwear Weight:LightweightSize Type:Plus
- Arc'teryxRho Zip-Neck Base Layer Top - Women'sTop Rated$120.00Underwear Weight:LightweightSize Type:Regular, Plus
- REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes$39.83 - $79.95Underwear Weight:LightweightSize Type:Plus
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