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Men's Underwear
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REI Co-opLightweight Base Layer Bottoms - Men's
$39.95REI Co-opSilk Long Underwear Crew Shirt - Men's Tall Sizes
$49.95REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes
$79.95REI Co-opSilk Long Underwear Bottoms - Men's
$49.95REI Co-opMidweight Base Layer Bottoms - Men's
$24.83 compared to $49.95You save 50%- REI Outlet
ExOfficioGive-N-Go Sport Mesh Vee Top - Men's
$28.73 compared to $45.00You save 36% REI Co-opSilk Long Underwear Crew Shirt - Men's
$49.95- REI Outlet
IcebreakerMerino Anatomica Boxers - Men's
$25.73 compared to $45.00You save 42% - REI Outlet
SmartwoolIntraknit Thermal Merino Colorblock Crew Base Layer Top - Men's
$82.73 compared to $120.00You save 31% SmartwoolIntraknit 200 Base Layer Bottoms - Men's
$59.83 compared to $120.00You save 50%- REI Outlet
OdloNatural + Kinship Warm Base Layer Top with Face Mask - Men's
$86.73 compared to $115.00You save 24% REI Co-opLightweight Base Layer Long-Sleeve Crew Top - Men's Tall Sizes
$39.95- ColorsREI Outlet
SaxxVibe Boxer Briefs - Men's
$24.73 compared to $32.00You save 22% - REI Outlet
SmartwoolMerino 250 Plant-Based Dye Logo Crew Base Layer Top - Men's
$82.73 compared to $110.00You save 24% REI Co-opLightweight Base Layer Bottoms - Men's Tall Sizes
$39.95- REI Outlet
IcebreakerMerino Anatomica Boxers with Fly - Men's
$28.73 compared to $45.00You save 36% - Colors
OdloWhistler Eco Long-Sleeve Half-Zip Base Layer Top - Men's
$44.83 compared to $90.00You save 50% - Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall Sizes
$89.95 - ColorsREI Outlet
OdloRun Easy Warm Pants - Men's
$68.73 compared to $100.00You save 31% PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's
$99.00REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
$79.95- REI Outlet
PatagoniaCapilene Thermal Weight Base Layer Bottoms - Men's
$62.73 compared to $89.00You save 29% SaxxViewfinder Base Layer Tights - Men's
$36.83 compared to $75.00You save 50%- ColorsREI Outlet
CraftActive Intensity Base Layer Top - Men's
$46.73 compared to $64.98You save 28% - REI Outlet
SmartwoolIntraknit Thermal Merino Half-Zip Base Layer Hoodie - Men's
$112.73 compared to $150.00You save 24% - Top Rated
Icebreaker150 Zone Crew T-Shirt - Men's
$58.93 compared to $85.00You save 30% SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men's
$100.00- Top Rated
Icebreaker260 Zone Half-Zip Base Layer Top - Men's
$150.00 - New Arrival
SmartwoolClassic Thermal Merino Base Layer Rib Hoodie
$140.00 IcebreakerMerino 260 Tech Long-Sleeve Turtleneck Base Layer - Men's
$135.00
