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Men's Base Layer Tops
(108 products)Products (108)
Sort: Best Match
REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
$54.95Underwear Weight:MidweightSize Type:Regular, Big, Tall- Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
$115.00Underwear Weight:MidweightSize Type:Regular, Big - Top Rated
REI Co-opMidweight Base Layer Half-Zip Top - Men's
$59.95Underwear Weight:MidweightSize Type:Regular, Big, Tall - Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
$79.95Underwear Weight:LightweightSize Type:Regular, Big REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
$99.95Underwear Weight:HeavyweightSize Type:Regular, Big, TallSmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
$90.00Underwear Weight:LightweightSize Type:Regular, BigREI Co-opLightweight Base Layer Long-Sleeve Crew Top - Men's Tall Sizes
$27.93Save 30%compared to  $39.95Underwear Weight:LightweightSize Type:Tall- Top Rated
REI Co-opLightweight Base Layer Long-Sleeve Crew Top - Men's
$27.93Save 30%compared to  $39.95Underwear Weight:LightweightSize Type:Regular, Big - Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
$89.95Underwear Weight:LightweightSize Type:Regular, Big - Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
$105.00Underwear Weight:MidweightSize Type:Regular, Big - Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Men's
$89.00Underwear Weight:MidweightSize Type:Regular, Big REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
$104.95Underwear Weight:HeavyweightSize Type:Regular, Big, TallSmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, BigFree CountryForce Grid Fleece Base Layer Top - Men's
$29.73Save 33%compared to  $45.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLETtasc PerformanceElevation Merino T-Shirt - Men's
$54.73Save 30%compared to  $79.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET- Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
$125.00Underwear Weight:HeavyweightSize Type:Regular, Big Free CountryMicrotech Heat Cocaber Base Layer Top - Men's
$26.73Save 33%compared to  $40.00Underwear Weight:LightweightSize Type:Regular, BigREI OUTLET- Top Rated
REI Co-opLightweight Base Layer Half-Zip Top - Men's
$29.93Save 33%compared to  $44.95Underwear Weight:LightweightSize Type:Regular REI Co-opLightweight Base Layer Long-Sleeve Zip-Neck Top - Men's Tall Sizes
$29.93Save 33%compared to  $44.95Underwear Weight:LightweightSize Type:Tall- Top Rated
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's
$95.00Underwear Weight:MidweightSize Type:Regular, Big - Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall Sizes
$89.95Underwear Weight:LightweightSize Type:Tall, Big REI Co-opLightweight Base Layer Crew Top - Men's
$19.93Save 33%compared to  $29.95Underwear Weight:LightweightSize Type:Regular, Tall, BigArms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Men's
$85.00Underwear Weight:UltralightweightSize Type:Regular, Big- Top Rated
PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's
$99.00Underwear Weight:MidweightSize Type:Regular, Big - Top Rated
Arc'teryxRho Heavyweight Zip-Neck Base Layer Top - Men's
$140.00Underwear Weight:HeavyweightSize Type:Regular, Big SmartwoolClassic Thermal Merino Base Layer Hoodie - Men's
$104.73Save 27%compared to  $145.00Underwear Weight:MidweightSize Type:RegularREI OUTLETIcebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men's
$115.00Underwear Weight:MidweightSize Type:Regular, BigSmartwoolThermal Merino Base Layer Hoodie - Men's
$145.00Underwear Weight:MidweightSize Type:Regular, BigPatagoniaCapilene Thermal Weight Zip-Neck Top - Men's
$109.00Underwear Weight:HeavyweightSize Type:Regular- Top Rated
Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men's
$120.00Underwear Weight:MidweightSize Type:Regular, Big
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