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Base Layer Tops
(216 products)Products (216)
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REI Co-opLightweight Half-Zip Base Layer Top - Men's
$44.95Underwear Weight:LightweightSize Type:Regular, Big, Tall- Top Rated
REI Co-opLightweight Crew Base Layer Top - Men's
$29.95Underwear Weight:LightweightSize Type:Regular, Big, Tall REI Co-opMidweight Base Layer Half-Zip Top - Women's
$29.83 - $59.95Underwear Weight:MidweightSize Type:Regular, Plus- Top Rated
REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Women's
$49.83 - $104.95Underwear Weight:HeavyweightSize Type:Regular, Plus - Top Rated
REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's
$49.83 - $99.95Underwear Weight:HeavyweightSize Type:Regular, Plus - Top Rated
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men's
$115.00Underwear Weight:MidweightSize Type:Regular, Big - Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's
$44.83 - $89.95Underwear Weight:LightweightSize Type:Regular PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's
$99.00Underwear Weight:MidweightSize Type:RegularPatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
$99.00Underwear Weight:HeavyweightSize Type:RegularKari TraaFryd Base Layer Top - Women's
$29.83 - $60.00Underwear Weight:MidweightSize Type:RegularPatagoniaCapilene Thermal Weight Zip-Neck Long Underwear Top - Women's
$109.00Underwear Weight:HeavyweightSize Type:Regular- Top Rated
Arc'teryxIonia Merino Wool Base Layer Top - Men's
$90.00Underwear Weight:MidweightSize Type:Regular, Big - Top Rated
REI Co-opMidweight Base Layer Crew Top - Kids'
$34.95Underwear Weight:MidweightSize Type:Regular Ortovox230 Competition Zip-Neck Base Layer Top - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
$59.83 - $120.00Underwear Weight:MidweightSize Type:Regular, Big PatagoniaCapilene Midweight Crew Base Layer Top - Kids'
$39.00Underwear Weight:MidweightSize Type:Regular- Top Rated
REI Co-opMerino Midweight Base Layer Crew Top - Kids'
$49.95Underwear Weight:MidweightSize Type:Regular Helly HansenHH Durawool T-Shirt - Women's
$80.00Underwear Weight:LightweightSize Type:Regular- Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Women's
$66.83 - $135.00Underwear Weight:MidweightSize Type:Regular SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$64.83 - $130.00Underwear Weight:MidweightSize Type:Regular, BigOrtovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's
$110.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall Sizes
$89.95Underwear Weight:LightweightSize Type:Tall - Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
$79.95Underwear Weight:LightweightSize Type:Tall - Top Rated
Icebreaker260 Tech Long-Sleeve Crewe Base Layer Top - Women's
$61.83 - $125.00Underwear Weight:HeavyweightSize Type:Regular, Plus SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's
$64.83 - $130.00Underwear Weight:MidweightSize Type:Regular- Top Rated
Arc'teryxRho LT Zip-Neck Base Layer Top - Men's
$84.83 - $120.00Underwear Weight:LightweightSize Type:Regular, Big Helly HansenHH Durawool Crew Long-Sleeve Base Layer - Women's
$90.00Underwear Weight:LightweightSize Type:RegularOrtovox230 Competition Long-Sleeve Base Layer Top - Men's
$110.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
Icebreaker150 Anatomica Crewe Base Layer Top - Men's
$75.00Underwear Weight:LightweightSize Type:Regular, Big Arms of Andes300 Lightweight Alpaca Wool Pullover Base Layer Hoodie - Women's
$140.00Underwear Weight:LightweightSize Type:Regular
61–90 of 216 products
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