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Midweight Base Layers
(173 products)Products (173)
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Mountain HardwearMountain Stretch Base Layer Tights - Men's
$55.73Save 25%compared to  $75.00Underwear Weight:MidweightSize Type: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 Kari TraaFloke Base Layer Pants - Women's
$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
CotopaxiLiso Base Layer Top - Men's
$48.73Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET Terramar2.0 Cloud Nine Midweight Performance Thermal Turtleneck - Women's
$35.73Save 25%compared to  $48.00Underwear Weight:MidweightSize Type:RegularREI OUTLETTerramar2.0 Cloud Nine Midweight Performance Base Layer Scoop Shirt - Women's
$33.73Save 25%compared to  $45.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaVoss Cashmere Mix Half-Zip Base Layer Top - Women's
$134.73Save 25%compared to  $180.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaRose Light Half-Zip Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Men's
$93.73Save 25%compared to  $125.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight Graphic Base Layer Pants - Women's
$82.73Save 24%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLETArtilectFlatiron 185 Base Layer Leggings - Men's
$109.73Save 31%compared to  $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETMons RoyaleCascade Merino Flex Base Layer Leggings - Women's
$69.73Save 41%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLETHelly HansenLIFA Merino Midweight 2-In-1 Base Layer Hoodie - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreaker200 Sonebula Leggings - Men's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETSmartwoolClassic Thermal Merino Lettuce Edge Crew Base Layer Top - Women's
$82.73Save 28%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
$48.73Save 25%compared to  $65.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - Top Rated
Sweaty BettyHigh-Neck Jacquard Base Layer Top - Women's
$82.73Save 29%compared to  $118.00Underwear Weight:MidweightSize Type:RegularREI OUTLET IcebreakerMerino 200 Oasis Long-Sleeve Crewe Macro Forms Base Layer Top - Women's
$85.73Save 25%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLETCraftCORE Dry Active Comfort Base Layer Top - Men's
$39.73Save 38%compared to  $64.95Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETArtilectFlatiron 185 Crew Base Layer Top - Men's
$96.73 - $109.73Save 30% - 31%compared to  $140.00 - $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETSmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
$86.73Save 24%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
Helly HansenLifa Merino Midweight Graphic Base Layer Top - Women's
$79.73 - $82.73Save 24% - 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - Top Rated
IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Women's
$93.73Save 25%compared to  $125.00Underwear Weight:MidweightSize Type:RegularREI OUTLET CraftCORE Dry Active Comfort Base Layer Top - Women's
$39.73Save 38%compared to  $64.95Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreaker200 Oasis Sonebula Base Layer Leggings - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:RegularREI OUTLETArtilectFlatiron 185 Quarter-Zip Base Layer Top - Women's
$109.73Save 31%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- New arrival
Icebreaker200 ZoneKnit Thermal Base Layer Leggings - Women's
$109.73Save 26%compared to  $150.00Underwear Weight:MidweightSize Type:RegularREI OUTLET - Top Rated
Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Men's
$109.73Save 26%compared to  $150.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLET Mons RoyaleCascade Merino Flex Mock-Neck Base Layer Top - Women's
$89.73Save 35%compared to  $140.00Underwear Weight:MidweightSize Type:RegularREI OUTLETSmartwoolClassic Thermal Merino Lettuce Edge Base Layer Bottoms - Women's
$82.73Save 28%compared to  $115.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
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