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Base Layer Tops: Deals
(149 products)Products (149)
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tasc PerformanceElevation Merino T-Shirt - Women's
$49.73 - $54.73Save 30% - 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLET REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
$49.83 - $104.95Underwear Weight:HeavyweightSize Type:Regular, Big, TallKari TraaLucie Half-Zip Base Layer Top - Women's
$67.73Save 24%compared to  $90.00Underwear Weight:LightweightSize Type:RegularREI OUTLETREI Co-opMidweight Base Layer Half-Zip Top - Women's
$29.83 - $59.95Underwear Weight:MidweightSize Type:Regular, PlusIcebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's
$86.73Save 24%compared to  $115.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET- Top Rated
Icebreaker125 ZoneKnit Merino Long-Sleeve Crewe Thermal Top - Men's
$93.73Save 25%compared to  $125.00Underwear Weight:UltralightweightSize Type:Regular, BigREI OUTLET tasc PerformanceElevation Merino T-Shirt - Men's
$49.73 - $54.73Save 30% - 37%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETKari TraaLilja Long-Sleeve Base Layer Top - Women's
$49.73Save 24%compared to  $66.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET- Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's
$44.83 - $89.95Underwear Weight:LightweightSize Type:Regular - Top Rated
REI Co-opMidweight Base Layer Half-Zip Top - Men's
$29.83 - $59.95Underwear Weight:MidweightSize Type:Regular, Big, Tall ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's
$116.73Save 31%compared to  $170.00Underwear Weight:MidweightSize Type:RegularREI OUTLETArc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
$98.83Save 29%compared to  $140.00Underwear Weight:MidweightSize Type:Regular, BigFree CountryMicrotech Heat Cocaber Base Layer Top - Women's
$34.73Save 30%compared to  $50.00Underwear Weight:LightweightSize Type:RegularREI OUTLETCraftCORE Dry Active Comfort Base Layer Top - Women's
$39.73Save 38%compared to  $64.95Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenLIFA ACTIVE Graphic Crew Base Layer Top - Women's
$46.73Save 28%compared to  $65.00Underwear Weight:LightweightSize Type:RegularREI OUTLETTerramar3.0 Thermawool Crew Base Layer Top - Women's
$49.73 - $52.73Save 24% - 28%compared to  $70.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- New arrival
Arc'teryxRho Heavyweight Zip-Neck Base Layer Top - Men's
$112.73Save 19%compared to  $140.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLET SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$64.83 - $130.00Underwear Weight:MidweightSize Type:Regular, Big- New arrival
Arc'teryxRho Base Layer Hoody - Women's
$96.73Save 19%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - New arrival
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
$49.83 - $99.95Underwear Weight:HeavyweightSize Type:Regular, Big- Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
$86.73Save 24%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET - Top Rated
SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men's
$67.73Save 24%compared to  $90.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET - Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
$86.73Save 24%compared to  $115.00Underwear Weight:MidweightSize Type:Regular, PlusREI OUTLET - New arrival
SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's
$123.73Save 25%compared to  $165.00Size Type:RegularREI OUTLET - Top Rated
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET - Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Women's
$66.83 - $135.00Underwear Weight:MidweightSize Type:Regular SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$48.73Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:RegularREI OUTLETSmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's
$97.73Save 24%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenMerino Wool Base Layer Set - Kids'
$82.73Save 31%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLET
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