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Long Sleeve Base Layer Tops
(230 products)Products (230)
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Helly HansenLIFA ACTIVE Stripe Crew Base Layer Top - Women's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight Crew Base Layer Top - Men's
$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreaker300 MerinoFine Long-Sleeve Roll-Neck Base Layer Top - Women's
$164.73Save 25%compared to  $220.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreakerMerino 260 Vertex Long-Sleeve Crewe Glacial Flow Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaRose Long-Sleeve Base Layer Top - Women's
$49.73Save 54%compared to  $110.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET- Top Rated
Kari TraaRose Half-Zip Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET Kari TraaJuliane Wool Long-Sleeve Base Layer Top - Women's
$90.73Save 30%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaFryd Long-Sleeve Base Layer Top - Women's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaSmekker Half-Zip Base Layer Top - Women's
$94.73Save 27%compared to  $130.00Underwear Weight:LightweightSize Type:RegularREI OUTLETSmartwoolClassic Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's
$86.93Save 30%compared to  $125.00Size Type:RegularBurtonLightweight Base Layer Set - Toddlers'
$26.83Save 51%compared to  $54.95Underwear Weight:LightweightSize Type:RegularIcebreakerMerino 250 Vertex Long-Sleeve Half-Zip Thermal Top Sedimentary - Women's
$89.73Save 40%compared to  $150.00Underwear Weight:MidweightSize Type:RegularREI OUTLETSmartwoolClassic Thermal Merino Base Layer Half-Zip Hoodie - Women's
$71.83Save 50%compared to  $145.00Underwear Weight:LightweightSize Type:RegularHelly HansenLifa Merino Midweight Base Layer Set - Kids'
$69.73Save 30%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's
$111.93 - $150.00Underwear Weight:MidweightSize Type:RegularSmartwoolThermal Merino Base Layer Hoodie - Men's
$145.00Underwear Weight:MidweightSize Type:RegularSmartwoolIntraknit Active Base Layer Top - Men's
$110.00Underwear Weight:LightweightSize Type:RegularCraftCore Dry Base-Layer Set - Men's
$43.73Save 41%compared to  $74.95Underwear Weight:LightweightSize Type:RegularREI OUTLETCraftActive Intensity Zip Base Layer Top - Women's
$54.73Save 31%compared to  $79.95Underwear Weight:LightweightSize Type:RegularREI OUTLET- Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Turtleneck Base Layer - Men's
$135.00Underwear Weight:MidweightSize Type:Big ArtilectFlatiron 185 Base Layer Crew Top - Men's
$41.83Save 70%compared to  $140.00Underwear Weight:MidweightSize Type:RegularSmartwoolClassic Thermal Merino Base Layer Hoodie - Men's
$104.73Save 27%compared to  $145.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
SmartwoolMerino 250 Asymmetric Base Layer Top - Women's
$87.73Save 29%compared to  $125.00Size Type:RegularREI OUTLET Helly HansenLifa Merino Midweight Base Layer Crew Top - Women's
$100.00Underwear Weight:MidweightSize Type:RegularSmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's
$90.93Save 30%compared to  $130.00Underwear Weight:MidweightSize Type:RegularHelly HansenHH Lifa Active Crew Base Layer Top - Women's
$39.73Save 33%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET- Top Rated
Helly HansenHH Lifa Active Crew Base Layer Top - Men's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLET REI Co-opLightweight Base Layer Long-Sleeve Crew Top - Women's
$9.83Save 75%compared to  $39.95Underwear Weight:LightweightSize Type:Regular- Top Rated
REI Co-opLightweight Base Layer Long-Sleeve Zip-Neck Top - Men's Tall Sizes
$9.83Save 78%compared to  $44.95Underwear Weight:LightweightSize Type:Tall Wild RyeHailey Half-Zip Base Layer Top - Women's
$69.73Save 41%compared to  $119.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
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