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Base Layer Tops
(280 products)Products (280)
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SmartwoolClassic Thermal Merino Base Layer Crew Top - Women's
$79.73Save 30%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLET IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Men's
$93.73Save 25%compared to  $125.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETSeirusHeatwave Body Mapped Quarter-Zip Long-Sleeve Base Layer Top - Women's
$140.00Underwear Weight:MidweightSize Type:RegularSeirusHeatwave Lite Reversible Long-Sleeve Base Layer Top - Men's
$74.95Underwear Weight:LightweightSize Type:RegularKari TraaRose Long-Sleeve Base Layer Top - Women's
$76.73Save 30%compared to  $110.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET- Top Rated
CotopaxiLiso Base Layer Top - Men's
$48.73Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET Helly HansenLIFA Active Stripe Crew Base Layer Top - Men's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETKari TraaFryd Long-Sleeve Base Layer Top - Women's
$34.73Save 36% - 42%compared to  $55.00 - $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight 2-In-1 Base Layer Hoodie - Men's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETKari TraaFierce Long-Sleeve Base Layer Top - Women's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLETCraftCORE Wool Mix Base Layer Set - Women's
$89.73Save 35%compared to  $139.95Size Type:RegularREI OUTLET- Top Rated
The North FaceFD Pro 160 Base Layer Crew Top - Men's
$70.00Underwear Weight:MidweightSize Type:Regular, Big SmartwoolClassic Thermal Merino Base Layer Logo Hoodie - Women's
$100.73Save 30%compared to  $145.00Underwear Weight:MidweightSize 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 OUTLETFree CountryMicrotech Heat Base Layer Top - Men's
$28.73Save 36%compared to  $45.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETKari TraaSilja Long-Sleeve Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETCraftActive Intensity Zip Base Layer Top - Men's
$39.73Save 46%compared to  $74.95Underwear Weight:LightweightSize Type:RegularREI OUTLETOrtovox185 Rock'n'wool Long-Sleeve Base Layer Top - Women's
$76.73Save 30%compared to  $110.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaLune Half-Zip Base Layer Top - Women's
$48.73Save 30%compared to  $70.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET- Top Rated
Arc'teryxIonia Merino Wool Base Layer Hoodie - Men's
$140.00Underwear Weight:MidweightSize Type:Regular, Big Arc'teryxRho Heavyweight Zip-Neck Base Layer Top - Women's
$150.00Underwear Weight:HeavyweightSize Type:Regular, PlusThe North FaceDotKnit Thermal Base Layer Set - Toddlers'
$70.00Underwear Weight:MidweightSize Type:Regular- Top Rated
Icebreaker200 Oasis Long-Sleeve Crewe Last Run Base Layer Top - Men's
$85.73Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET - Top Rated
Helly HansenHH Lifa Active Crew Base Layer Top - Men's
$44.73Save 25%compared to  $60.00Underwear Weight:LightweightSize Type:BigREI OUTLET - Top Rated
CraftCore Warm Base-Layer Set - Men's
$59.73Save 25%compared to  $79.95Underwear Weight:LightweightSize Type:BigREI OUTLET IcebreakerMerino 200 Oasis Long-Sleeve Crewe First Snow Base Layer Top - Men's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:BigREI OUTLET- Top Rated
Arc'teryxIonia Merino Wool Base Layer Top - Men's
$63.83Save 29%compared to  $90.00Underwear Weight:MidweightSize Type:Regular SmartwoolClassic Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's
$61.83Save 50%compared to  $125.00Underwear Weight:MidweightSize Type:Regular- Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's Plus Sizes
$47.83Save 60%compared to  $120.00Underwear Weight:MidweightSize Type:Plus Ortovox185 Merino Rock'n'wool Base Layer Top - Women's
$49.83Save 50%compared to  $100.00Underwear Weight:MidweightSize Type:Regular
241–270 of 280 products
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