Base Layer Bottoms

Base Layer Tops

Underwear Bottoms

Underwear Tops

Men's Base Layers & Underwear.

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121 products
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43% off
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SMARTWOOL
Merino Sport Ultralite Tank (Men's) - SW016545 - Past Season
From $40.00 $70.00 Sold Out
ML
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ICEBREAKER
Cool-Lite™ Merino Anatomica Boxers (Men's)
$60.00
ML
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Merino Central Short Sleeve T-Shirt (Men's)
$70.00
MLXL
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Merino Tech Lite II Short Sleeve T-Shirt Surfspot Camper (Men's)
$100.00
SMLXL
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Merino Tech Lite II Short Sleeve T-Shirt Waschbar Wandering (Men's)
$100.00
SML
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Merino Tech Lite II Short Sleeve T-Shirt Single Line Camp (Men's)
$100.00
SMLXL
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Merino Spector Short Sleeve Crewe T-Shirt Seven Summits (Men's)
$85.00
MLXL
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Merino Wave Long Sleeve Stripe T-Shirt (Men's)
$110.00
SML
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Merino Tech Lite II Short Sleeve T-Shirt Paddle Lines (Men's)
$100.00
MLXL
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Merino Tech Lite II Short Sleeve T-Shirt South Alp (Men's)
$100.00
ML
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Merino Tech Lite II Short Sleeve T-Shirt Sheeperds Cycle Club (Men's)
$100.00 Sold Out
ML
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Merino Tech Lite II Short Sleeve T-Shirt Canopy Camper (Men's)
$100.00
SML
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Merino Wave Short Sleeve Stripe T-Shirt (Men's)
$95.00
SML
HOT CHILLY'S
Skins Jersey Crew Baselayer (Men's)
$29.00 $39.99 Sale
SMLXL2XL
1 in stock
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THE NORTH FACE
Winter Warm Gridded Long Sleeve Top (Men's) - Past Season
$45.00 $89.99 Sale
S
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EXOFFICIO
Give-N-Go® 2.0 Crew Neck Tee (Men's)
$49.99
SMLXL
33% off
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SMARTWOOL
Merino Sport 150 Go Far, Feel Good Spokes Short Sleeve Graphic Tee (Men's) - SW016731 - Past Season
From $50.00 $75.00 Sale
ML
33% off
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SMARTWOOL
Merino Sport 150 Midnight Snooze Short Sleeve Graphic Tee (Men's) - SW016572 - Past Season
From $50.00 $75.00 Sale
SMLXL2XL
33% off
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SMARTWOOL
Merino Sport 150 Overland Adventure Short Sleeve Graphic Tee (Men's)
From $50.00 $75.00 Sold Out
SMLXL2XL
33% off
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SMARTWOOL
Merino Sport 150 Overland Trek Short Sleeve Graphic Tee (Men's) - SW016568 - Past Season
From $50.00 $75.00 Sale
SMLXL
30% off
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SMARTWOOL
Merino Sport Ultralite Mountain Bike ¾ Sleeve Tee (Men's)
From $70.00 $100.00 Sale
MLXL
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Merino Sport UltraLite Mountain Biking Short Sleeve Tee (Men's)
$90.00
MLXL
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Merino Sport Ultralite Long Sleeve (Men's)
$85.00
SMLXL
60% off
Quick buy
SMARTWOOL
PhD Seamless 6" Boxer Brief (Men's)
From $20.00 $49.99 Sold Out
SML
36% off
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SMARTWOOL
Merino 250 Baselayer Pattern Crew (Men's) - SW016351 - Past Season
From $90.00 $140.00 Sale
SML
33% off
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SMARTWOOL
Merino 150 Boxer Brief (Men's) - SW016011 - Past Season
From $40.00 $60.00 Sale
SMLXL
55% off
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SMARTWOOL
Merino 150 Baselayer Long Sleeve (Men's) - SW000748 - Past Season
$50.00 $110.00 Sold Out
ML
67% off
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SMARTWOOL
Merino 250 Baselayer 1/4 Zip (Men's) - SW016355 - Past Season
From $50.00 $150.00 Sold Out
ML