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Long Sleeve Underwear
(256 products)Products (256)
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CraftCore Dry Base-Layer Set - Women's
$49.73Save 33%compared to  $74.95Underwear Weight:LightweightSize Type:RegularREI OUTLETHelly HansenLifa Merino Midweight Graphic Base Layer Top - Women's
$79.73 - $82.73Save 24% - 27%compared to  $110.00Underwear Weight:MidweightSize Type:RegularREI OUTLETKari TraaFryd Long-Sleeve Base Layer Top - Women's
$41.73Save 30%compared to  $60.00Underwear Weight:LightweightSize Type:RegularREI OUTLETHelly HansenVerglas Half-Zip Top - Women's
$63.73Save 25%compared to  $85.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaRose Light Half-Zip Base Layer Top - Women's
$90.73Save 30%compared to  $130.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women's
$62.83 - $105.00Underwear Weight:MidweightSize Type:Regular, Plus ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Men's
$109.73Save 31%compared to  $160.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's
$116.73Save 31%compared to  $170.00Underwear 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 OUTLETFree CountryMicrotech Heat Cocaber Base Layer Top - Women's
$34.73Save 30%compared to  $50.00Underwear Weight:LightweightSize Type:Regular, PlusREI OUTLETArtilectGoldhill 125 Zoned Crew Base Layer Top - Men's
$89.73Save 30%compared to  $130.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETIcebreaker200 Oasis Sonebula Long-Sleeve Crewe Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLETIcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Women's
$93.73Save 25%compared to  $125.00Underwear Weight:MidweightSize Type:RegularREI OUTLETtasc PerformanceElevation Merino T-Shirt - Men's
$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETIcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men's
$89.73Save 25%compared to  $120.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETArtilectBoulder 125 Crew Long-Sleeve Base Layer Top - Women's
$82.73Save 31%compared to  $120.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaRose Half-Zip Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI 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 OUTLETKari TraaVoss Cashmere Mix Half-Zip Base Layer Top - Women's
$134.73Save 25%compared to  $180.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreaker125 ZoneKnit Merino Long-Sleeve Crewe Thermal Top - Men's
$86.73 - $93.73Save 25% - 30%compared to  $125.00Underwear Weight:UltralightweightSize Type:Regular, BigREI OUTLETKari TraaJuliane Wool Long-Sleeve Base Layer Top - Women's
$90.73Save 30%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETSmartwoolIntraknit Active Base Layer Crew Shirt - Men's
$81.73Save 25%compared to  $110.00Underwear Weight:MidweightSize Type:Regular, BigREI OUTLETWild RyeEvie Raglan Base Layer Top - Women's
$69.73Save 41%compared to  $119.00Underwear Weight:LightweightSize Type:RegularREI OUTLETKari TraaEdith Long-Sleeve Base Layer Top - Women's
$74.73Save 25%compared to  $100.00Underwear Weight:MidweightSize Type:RegularREI OUTLET- Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
$79.95Underwear Weight:LightweightSize Type:Tall, Big SeirusHeatwave Quick Body Mapped Long-Sleeve Base Layer Hoodie - Women's
$135.00Underwear Weight:MidweightSize Type:RegularIcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaLucie Long-Sleeve Base Layer Top - Women's
$95.00Underwear Weight:LightweightSize Type:RegularHelly HansenHH Merino Half-Zip Base Layer Top - Women's
$89.73Save 28%compared to  $125.00Underwear Weight:LightweightSize Type:RegularREI OUTLETArtilectDarkhorse 185 Zoned Crew Base Layer Top - Women's
$109.73Save 31%compared to  $160.00Underwear Weight:MidweightSize Type:RegularREI OUTLET
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