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Long Sleeve Base Layer Tops
(232 products)Products (232)
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REI Co-opMidweight Long-Sleeve Base Layer Top - Women's
$54.95Underwear Weight:MidweightSize Type:Regular, Plus- Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
$115.00Underwear Weight:MidweightSize Type:Regular, Plus REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
$54.95Underwear Weight:MidweightSize Type:Regular, Big, Tall- Top Rated
Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, Big ArtilectBoulder 125 Crew Base Layer Top - Men's
$83.93Save 30%compared to  $120.00Underwear Weight:LightweightSize Type:Regular, BigREI Co-opMidweight Base Layer Half-Zip Top - Women's
$59.95Underwear Weight:MidweightSize Type:Regular, Plus- Top Rated
REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Women's
$104.95Underwear Weight:HeavyweightSize Type:Regular, Plus - Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Men's
$61.93 - $89.00Underwear Weight:MidweightSize Type:Regular, Big Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Women's
$79.73 - $82.73Save 24% - 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
$115.00Underwear Weight:MidweightSize Type:Regular, Big REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's
$99.95Underwear Weight:HeavyweightSize Type:Regular, Plustasc PerformanceElevation Merino T-Shirt - Men's
$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETREI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
$79.95Underwear Weight:LightweightSize Type:Regular- Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women's
$41.83 - $105.00Underwear Weight:MidweightSize Type:Regular, Plus - Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
$79.95Underwear Weight:LightweightSize Type:Regular, Big REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
$99.95Underwear Weight:HeavyweightSize Type:Regular, Big, TallREI Co-opMidweight Base Layer Crew Top - Kids'
$34.95Underwear Weight:MidweightSize Type:RegularREI 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 - Top Rated
REI Co-opMidweight Base Layer Half-Zip Top - Men's
$59.95Underwear Weight:MidweightSize Type:Regular, Big, Tall - Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's
$89.95Underwear Weight:LightweightSize Type:Regular - Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
$125.00Underwear Weight:HeavyweightSize Type:Regular, Big BurtonMidweight Base Layer Crew Top - Women's
$64.95Underwear Weight:MidweightSize Type:Regular, Plus- Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's
$120.00Underwear Weight:MidweightSize Type:Regular, Plus Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's
$104.73Save 30%compared to  $150.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETSmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's
$90.00Underwear Weight:LightweightSize Type:Regular, PlusHelly HansenLifa Merino Midweight Crew Base Layer Top - Men's
$100.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
Icebreaker260 Tech Long-Sleeve Crewe Base Layer Top - Women's
$125.00Underwear Weight:HeavyweightSize Type:Regular, Plus Helly HansenLIFA Merino Midweight Base Layer Hoodie - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
Arc'teryxRho Zip-Neck Base Layer Top - Women's
$120.00Underwear Weight:LightweightSize Type:Regular, Plus
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