Skip to search results
loaded 255 results
Long Sleeve Base Layers
(255 products)Products (255)
Sort: Best Match
- Sale Ends Today
IcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Glacial Flow Base Layer Top - Women's
$64.73Save 56%compared to  $150.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET - Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes
$23.83 - $55.89Save 30% - 70%compared to  $79.95Underwear Weight:LightweightSize Type:Plus - Sale Ends Today
IcebreakerMerino 200 Sonebula Long-Sleeve Half-Zip Hood Base Layer Top - Men's
$66.73Save 55%compared to  $150.00Underwear Weight:MidweightSize Type:Big, RegularREI OUTLET - Sale Ends Today
SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's
$69.73Save 55%compared to  $155.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - Sale Ends Today
Icebreaker200 ZoneKnit Merino Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
$69.73Save 56%compared to  $160.00Size Type:BigREI OUTLET - Sale Ends Nov 25
SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$48.69Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:Regular - Top Rated
Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, Big Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
$140.00Underwear Weight:MidweightSize Type:Regular, BigPatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's
$99.00Underwear Weight:MidweightSize Type:RegularHelly HansenLIFA Merino Midweight Base Layer Set - Kids'
$100.00Underwear Weight:MidweightSize Type:RegularSmartwoolClassic Thermal Merino Colorblock Base Layer Crew Top - Men's
$79.73Save 30%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETPatagoniaCapilene Midweight Crew Base Layer Top - Kids'
$39.00Underwear Weight:MidweightSize Type:Regular- New arrival
HalfdaysJohnson Base Layer Top - Women's
$85.00Underwear Weight:UltralightweightSize Type:Regular, Plus PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
$99.00Underwear Weight:HeavyweightSize Type:RegularHelly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's
$150.00Underwear Weight:MidweightSize Type:Regular- Top Rated
The North FaceFD Pro 160 Base Layer Crew Top - Women's
$70.00Underwear Weight:MidweightSize Type:Regular, Plus Helly HansenGraphic LIFA Merino Base Layer Set - Kids'
$110.00Underwear Weight:MidweightSize Type:RegularBurtonLightweight Base Layer Set - Kids'
$59.95Underwear Weight:LightweightSize Type:RegularBurtonLightweight Base Layer Set - Toddlers'
$54.95Underwear Weight:LightweightSize Type:RegularPatagoniaBaby Capilene Midweight Henley Base Layer Top - Infants'
$35.00Underwear Weight:MidweightSize Type:RegularHelly HansenLifa Merino Midweight Half-Zip Base Layer Top - Men's
$110.00Underwear Weight:MidweightSize Type:Regular, BigHelly HansenLifa Merino Midweight Crew Base Layer Top - Men's
$100.00Underwear Weight:MidweightSize Type:Regular, BigArms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Women's
$115.00 - $135.00Underwear Weight:LightweightSize Type:RegularArtilectBoulder 125 Crew Base Layer Top - Men's
$120.00Underwear Weight:LightweightSize Type:Regular, BigHelly HansenLIFA Merino Midweight Base Layer Hoodie - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, BigBurtonMidweight Base Layer Crew Top - Women's
$64.95Underwear Weight:MidweightSize Type:Regular, PlusPicture Organic ClothingNangha Base Layer Top - Men's
$90.00Underwear Weight:MidweightSize Type:Regular, Big- Top Rated
ArtilectFlatiron 185 Base Layer Crew Top - Men's
$140.00Underwear 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:Regular
91–120 of 255 products
Sort: Best Match