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Base Layer
(384 products)Products (384)
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- Top Rated
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men's
$89.73Save 25%compared to  $120.00REI OUTLET - Top Rated
Icebreaker260 ZoneKnit Base Layer Leggings - Men's
$119.73Save 27%compared to  $165.00REI OUTLET Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Hoodie - Women's
$89.73Save 25%compared to  $120.00REI OUTLET- New arrival
Arc'teryxKyanite Base Layer Bottoms - Women's
$96.73Save 19%compared to  $120.00REI OUTLET SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's
$97.73Save 24%compared to  $130.00REI OUTLET- Top Rated
Helly HansenLifa Merino Midweight Graphic Base Layer Top - Women's
$79.73 - $82.73Save 24% - 27%compared to  $110.00REI OUTLET ArtilectFlatiron 185 Crew Base Layer Top - Men's
$96.73 - $109.73Save 30% - 31%compared to  $140.00 - $160.00REI OUTLET- Top Rated
IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Women's
$93.73Save 25%compared to  $125.00REI OUTLET - Top Rated
IcebreakerMerino 260 Tech Thermal Base Layer Leggings With Fly - Men's
$93.73Save 25%compared to  $125.00REI OUTLET SmartwoolIntraknit Active Base Layer Bottoms - Men's
$82.73Save 24%compared to  $110.00REI OUTLETIcebreakerMerino 200 Oasis Long-Sleeve Crewe Macro Forms Base Layer Top - Women's
$85.73Save 25%compared to  $115.00REI OUTLETIcebreaker200 ZoneKnit Thermal Base Layer Leggings - Women's
$109.73Save 26%compared to  $150.00REI OUTLET- Top Rated
Sweaty BettyHigh-Neck Jacquard Base Layer Top - Women's
$82.73Save 29%compared to  $118.00REI OUTLET ArtilectFlatiron 185 Quarter-Zip Base Layer Top - Women's
$109.73Save 31%compared to  $160.00REI OUTLETCraftCore Dry Active Comfort Base Layer Pants - Men's
$32.73Save 34%compared to  $49.95REI OUTLETMons RoyaleEpic Merino Shift MTB Liner Shorts - Women's
$79.73Save 27%compared to  $110.00REI OUTLETSmartwoolIntraknit Active Base Layer Crew Shirt - Men's
$81.73Save 25%compared to  $110.00REI OUTLETHelly HansenGraphic Lifa Merino Base Layer Set - Kids'
$74.73Save 32%compared to  $110.00REI OUTLETFree CountryMicrotech Heat Cocaber Base Layer Bottoms - Women's
$34.73Save 30%compared to  $50.00REI OUTLETArtilectDarkhorse 185 Zoned Crew Base Layer Top - Women's
$109.73Save 31%compared to  $160.00REI OUTLETTerramar3.0 Thermawool Crew Base Layer Top - Women's
$49.73 - $52.73Save 24% - 28%compared to  $70.00REI OUTLETKari TraaLilja Base Layer Pants - Women's
$49.73Save 24%compared to  $66.00REI OUTLET- Top Rated
Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Men's
$109.73Save 26%compared to  $150.00REI OUTLET Kari TraaAlma Base Layer Pants - Women's
$52.73Save 24%compared to  $70.00REI OUTLETKari TraaLekker Half-Zip Base Layer Top - Women's
$44.73Save 25%compared to  $60.00REI OUTLETArtilectDarkhorse 185 Zoned Base Layer Leggings - Women's
$109.73Save 31%compared to  $160.00REI OUTLETSmartwoolClassic Thermal Merino Lettuce Edge Base Layer Bottoms - Women's
$82.73Save 28%compared to  $115.00REI OUTLETPatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's
$74.73Save 24%compared to  $99.00REI OUTLET- Top Rated
IcebreakerMerino 260 Tech Thermal Base Layer Leggings - Kids'
$49.73Save 28%compared to  $70.00REI OUTLET SmartwoolClassic Thermal Merino Base Layer Hoodie - Kids'
$56.73Save 24%compared to  $75.00REI OUTLET
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