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Long Sleeve Base Layer Tops
(253 products)Products (253)
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SeirusHeatwave Reversible Long-Sleeve Crew Base Layer Top - Men's
$99.95Underwear Weight:HeavyweightSize Type:Regular, BigKari TraaSilja Half-Zip Base Layer Top - Women's
$90.73Save 30%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETSmartwoolClassic Thermal Merino Colorblock Base Layer Crew Top - Men's
$79.73Save 30%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETFree CountryMicrotech Heat Cocaber Base Layer Top - Women's
$34.73Save 30%compared to  $50.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLETIcebreakerMerino 175 Everyday Long-Sleeve Crewe Thermal Top - Men's
$63.73Save 25%compared to  $85.00Underwear Weight:LightweightSize Type:RegularREI OUTLETHalfdaysJohnson Base Layer Top - Women's
$85.00Underwear Weight:UltralightweightSize Type:Regular, PlusHelly HansenVerglas Half-Zip Top - Women's
$63.73Save 25%compared to  $85.00Underwear Weight:LightweightSize Type:RegularREI OUTLET- Top Rated
Arc'teryxRho LT Base Layer Hoodie - Men's
$120.00Underwear Weight:LightweightSize Type:Regular, Big PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's
$99.00Underwear Weight:MidweightSize Type:RegularArc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
$140.00Underwear Weight:MidweightSize Type:Regular, BigHelly HansenLIFA Merino Midweight Base Layer Set - Kids'
$100.00Underwear Weight:MidweightSize Type:RegularPatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
$99.00Underwear Weight:HeavyweightSize Type:RegularPatagoniaCapilene Midweight Crew Base Layer Top - Kids'
$39.00Underwear Weight:MidweightSize Type:RegularHelly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's
$150.00Underwear Weight:MidweightSize Type:RegularPatagoniaBaby Capilene Midweight Henley Base Layer Top - Infants'
$35.00Underwear Weight:MidweightSize Type:RegularHelly HansenLifa Merino Midweight Crew Base Layer Top - Men's
$100.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
The North FaceFD Pro 160 Base Layer Crew Top - Women's
$70.00Underwear Weight:MidweightSize Type:Regular, Plus BurtonLightweight Base Layer Set - Kids'
$59.95Underwear Weight:LightweightSize Type:RegularBurtonLightweight Base Layer Set - Toddlers'
$54.95Underwear Weight:LightweightSize Type:RegularHelly HansenGraphic LIFA Merino Base Layer Set - Kids'
$110.00Underwear Weight:MidweightSize Type:RegularArms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Women's
$115.00 - $135.00Underwear Weight:LightweightSize Type:RegularHelly HansenLifa Merino Midweight Half-Zip Base Layer Top - Men's
$110.00Underwear Weight:MidweightSize Type:Regular, BigHelly HansenLIFA Merino Midweight Base Layer Hoodie - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, BigArtilectBoulder 125 Crew Base Layer Top - Men's
$120.00Underwear Weight:LightweightSize Type:Regular, BigBurtonMidweight Base Layer Crew Top - Women's
$64.95Underwear Weight:MidweightSize Type:Regular, Plus- Top Rated
ArtilectFlatiron 185 Base Layer Crew Top - Men's
$140.00Underwear Weight:MidweightSize Type:Regular, Big Picture Organic ClothingNangha Base Layer Top - Men's
$90.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
ArtilectBoulder 125 Quarter-Zip Base Layer Top - Men's
$130.00Underwear Weight:LightweightSize Type:Regular, Big ArtilectFlatiron 185 Quarter-Zip Base Layer Top - Men's
$160.00Underwear Weight:MidweightSize Type:RegularHelly HansenLifa Merino Midweight Base Layer Half-Zip Top - Women's
$110.00Underwear Weight:MidweightSize Type:Regular
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