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Lightweight Base Layers
(144 products)Products (144)
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REI Co-opMerino 185 Base Layer Bottoms - Men's
$39.83 - $79.95Underwear Weight:LightweightSize Type:Regular, BigREI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
$39.83 - $79.95Underwear Weight:LightweightSize Type:Regular- Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
$79.95Underwear Weight:LightweightSize Type:Regular, Big Arc'teryxRho Base Layer Bottoms - Women's
$24.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Plus- Top Rated
REI Co-opLightweight Base Layer Bottoms - Men's
$39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
$39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall- Top Rated
tasc PerformanceElevation Merino T-Shirt - Women's
$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET REI Co-opMerino 185 Base Layer Bottoms - Women's
$79.95Underwear Weight:LightweightSize Type:RegularREI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women's
$39.95Underwear Weight:LightweightSize Type:Regular, PlusSmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
$90.00Underwear Weight:LightweightSize Type:Regular, BigArc'teryxRho LT Base Layer Bottoms - Men's
$80.93 - $100.00Underwear Weight:LightweightSize Type:Regular, BigREI Co-opLightweight Half-Zip Base Layer Top - Women's
$44.95Underwear Weight:LightweightSize Type:Regular, PlusREI Co-opLightweight Crew Base Layer Top - Women's
$29.95Underwear Weight:LightweightSize Type:Regular, PlusArc'teryxLana Merino Wool Crew Base Layer Top - Women's
$90.00Underwear Weight:LightweightSize Type:Regular, PlusREI Co-opLightweight Base Layer Tights - Women's
$39.95Underwear Weight:LightweightSize Type:Regular, Plus- Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
$89.95Underwear Weight:LightweightSize Type:Regular, Big Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's
$135.00Underwear Weight:LightweightSize Type:Regular, BigSmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's
$62.93 - $90.00Underwear Weight:LightweightSize Type:Regular, PlusHelly HansenHH Durawool Crew Long-Sleeve Base Layer - Women's
$90.00Underwear Weight:LightweightSize Type:Regular- Top Rated
Arc'teryxRho Zip-Neck Base Layer Top - Women's
$120.00Underwear Weight:LightweightSize Type:Regular, Plus Helly HansenHH Durawool Graphic T-Shirt - Women's
$90.00Underwear Weight:LightweightSize Type:RegularHelly HansenHH LIFA Crew Base Layer Top - Women's
$45.00Underwear Weight:LightweightSize Type:Regular- Top Rated
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 Base Layer Top - Women's Plus Sizes
$34.83 - $69.95Underwear Weight:LightweightSize Type:Plus- Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes
$79.95Underwear Weight:LightweightSize Type:Plus - New arrival
Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Top - Men's
$125.00Underwear Weight:LightweightSize Type:Regular, Big Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's
$130.00Underwear Weight:LightweightSize Type:Regular, BigArms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Women's
$115.00 - $135.00Underwear Weight:LightweightSize Type:RegularSmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
$90.00Underwear Weight:LightweightSize Type:Regular, PlusREI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes
$39.83 - $79.95Underwear Weight:LightweightSize Type:Plus
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