Skip to search results
loaded 258 results
Base Layer Tops
(258 products)Products (258)
Sort: Best Match
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women's
$56.83 - $115.00Underwear Weight:LightweightSize Type:RegularPatagoniaCapilene Thermal Weight Zip-Neck Long Underwear Top - Women's
$109.00Underwear Weight:HeavyweightSize Type:RegularOrtovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's
$110.00Underwear Weight:MidweightSize Type:Regular, BigHelly HansenLIFA Merino Midweight Graphic Base Layer Crew Top - Women's
$110.00Underwear Weight:MidweightSize Type:Regular- Top Rated
REI Co-opMidweight Crew Base Layer Top - Toddlers'
$24.95Underwear Weight:MidweightSize Type:Regular REI Co-opMerino 185 Base Layer Top - Men's
$69.95Underwear Weight:LightweightSize Type:Regular, BigIcebreaker125 Cool-Lite Merino Blend Sphere III Scoop T-Shirt - Women's
$75.00Underwear Weight:LightweightSize Type:RegularOrtovox120 Comp Light Base Layer Hoody - Men's
$120.00Underwear Weight:LightweightSize Type:Regular- Top Rated
The North FaceSummit Series Pro 120 Crew Base Layer Top - Women's
$100.00Underwear Weight:UltralightweightSize Type:Regular, Plus Icebreaker260 ZoneKnit Long-Sleeve Crewe Thermal Top - Men's
$165.00Underwear Weight:HeavyweightSize Type:RegularOrtovox120 Cool Tec Clean Base Layer T-Shirt - Men's
$90.00Underwear Weight:LightweightSize Type:Regular, BigThe North FaceFD Pro 160 Base Layer Crew Top - Women's
$70.00Underwear Weight:MidweightSize Type:RegularTerramar3.0 Altitude Heavyweight Crew Base Layer Top - Women's
$16.73Save 33%compared to  $25.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's
$104.73Save 30%compared to  $150.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenHH Graphic LIFA Merino Base Layer Set - Kids'
$54.73Save 31%compared to  $80.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Base Layer Set - Kids'
$49.73Save 33%compared to  $75.00Underwear Weight:MidweightSize Type:RegularREI OUTLETSmartwoolClassic All-Season Merino Base Layer Long-Sleeve Shirt - Women's
$66.73Save 25%compared to  $90.00Underwear Weight:MidweightSize Type:RegularREI OUTLETArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Men's
$116.73Save 31%compared to  $170.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenHH Merino Half-Zip Base Layer Top - Women's
$89.73Save 28%compared to  $125.00Underwear Weight:LightweightSize Type:RegularREI OUTLETSmartwoolIntraknit Active Base Layer Crew Top - Women's
$76.73Save 30%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenLIFA ACTIVE Stripe Crew Base Layer Top - Women's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize 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 OUTLETIcebreakerMerino 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:RegularMons RoyaleCascade Merino Flex Mock-Neck Base Layer Top - Women's
$89.73Save 35%compared to  $140.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
91–120 of 258 products
Sort: Best Match