Skip to search results
loaded 154 results
Lightweight Base Layers
(154 products)Products (154)
Sort: Best Match
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
$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 REI Co-opMerino 185 Base Layer Bottoms - Men's
$79.95Underwear Weight:LightweightSize Type:Regular, Bigtasc PerformanceElevation Merino T-Shirt - Men's
$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETREI Co-opMerino 185 Base Layer Bottoms - Women's
$79.95Underwear Weight:LightweightSize Type:Regular- Top Rated
REI Co-opLightweight Base Layer Crew Top - Kids'
$20.93Save 30%compared to  $29.95Underwear Weight:LightweightSize Type:Regular - Top Rated
Arc'teryxRho LT Crew Neck Base Layer Top - Men's
$100.00Underwear Weight:LightweightSize Type:Regular, Big SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's
$130.00Underwear Weight:LightweightSize Type:Regular, BigArc'teryxRho LT Base Layer Bottoms - Men's
$100.00Underwear Weight:LightweightSize Type:Regular, BigSmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
$90.00Underwear Weight:LightweightSize Type:Regular, Big- New arrival
REI Co-opLightweight Base Layer Bottoms - Men's
$39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
$90.00Underwear Weight:LightweightSize Type:Regular, PlusSmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
$90.00Underwear Weight:LightweightSize Type:Regular, Big- New arrival
REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
$39.95Underwear Weight:LightweightSize Type:Regular, Big, Tall - Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
$89.95Underwear Weight:LightweightSize Type:Regular, Big SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's
$35.83 - $90.00Underwear Weight:LightweightSize Type:Regular, PlusREI Co-opMerino 185 Base Layer Top - Women's
$34.83 - $69.95Underwear Weight:LightweightSize Type:Regular- Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's
$89.95Underwear Weight:LightweightSize Type:Regular - New arrival
REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women's
$39.95Underwear Weight:LightweightSize Type:Regular, Plus REI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes
$79.95Underwear Weight:LightweightSize Type:PlusArc'teryxRho Base Layer Bottoms - Women's
$49.83 - $100.00Underwear Weight:LightweightSize Type:Regular, Plus- New arrival
REI Co-opLightweight Half-Zip Base Layer Top - Men's
$44.95Underwear Weight:LightweightSize Type:Regular, Big, Tall - Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes
$23.83 - $79.95Underwear Weight:LightweightSize Type:Plus Kari TraaKlara High-Waist Base Layer Pant - Women's
$90.00Underwear Weight:LightweightSize Type:Regular- New arrival
REI Co-opLightweight Half-Zip Base Layer Top - Women's
$44.95Underwear Weight:LightweightSize Type:Regular, Plus Arc'teryxRho Merino Wool Base Layer Bottoms - Men's
$120.00Underwear Weight:LightweightSize Type:Regular, BigREI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's Plus Sizes
$89.95Underwear Weight:LightweightSize Type:Plus- New arrival
REI Co-opLightweight Base Layer Tights - Women's
$39.95Underwear Weight:LightweightSize Type:Regular, Plus Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Women's
$115.00 - $135.00Underwear Weight:LightweightSize Type:Regular- New arrival
REI Co-opLightweight Crew Base Layer Top - Men's
$29.95Underwear Weight:LightweightSize Type:Regular, Big, Tall
1–30 of 154 products
Sort: Best Match