Base Layer BottomsBase Layer TopsUnderwear BottomsUnderwear Tops

Men's Base Layers & Underwear.

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89 products
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43% off
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EXOFFICIO
Give-N-Go Sport Mesh Brief (Men's) - Past Season
Select Styles $20.00 $34.99 Sale
SMLXL2XL
BLACKPHANTOM+ 1 more
43% off
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EXOFFICIO
Give-N-Go Boxer (Men's) - Past Season
Select Styles $20.00 $34.99 Sale
SMLXL2XL
BLACKWHITECHARCOALCURFEWHEMLOCK+ 2 more
37% off
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EXOFFICIO
Give-N-Go Brief (Men's) - Past Season
Select Styles $17.00 $26.99 Sale
SMLXL2XL
BLACKCHARCOALHEMLOCKSTOPWHITECURFEW+ 7 more
40% off
Quick buy
WOOLPOWER
400 Long Johns
$94.05 $156.75 Sale
SMLXL2XL
BLACK
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ARC'TERYX
Rho LT Bottom (Men's)
$110.00
SMLXL2XL
PYTHEASBLACK
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ICEBREAKER
Merino 260 Tech Long Sleeve Half Zip Thermal Top (Men's)
$155.00
SMLXL2XL
BLACKGRITSTONE HEATHER
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ICEBREAKER
Merino 260 Tech Long Sleeve Crewe Thermal Top (Men's)
$145.00
SMLXL2XL3XL
GRITSTONEBLACK
42% off
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ICEBREAKER
BodyfitZone™ Merino 260 Zone Long Sleeve Half Zip Thermal Top (Men's) - Past Season
Select Styles $98.00 $170.00 Sale
LXLS2XL
JET HTHR-BLACK
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ICEBREAKER
Merino 175 Everyday Long Sleeve Crewe Thermal Top (Men's)
$95.00
MLXL
BLACK
53% off
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ICEBREAKER
Merino Anatomica Short Sleeve Crewe T-Shirt (Men's)
Select Styles $40.00 $85.00 Sale
SMLXL2XL
MIDNIGHT NAVYBLACK-MONSOONBLACKJET-BLACK+ 1 more
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ICEBREAKER
Merino Anatomica Briefs (Men's) - Past Season
$44.99
SMXLL2XL
BLACK-MONSOONMIDNIGHT NAVY-GRANIT
36% off
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SMARTWOOL
Classic Thermal Merino Base Layer Crew Boxed (Men's) - SW016350
Select Styles $90.00 $140.00 Sale
SMLXL2XL
BLACK COLOUR SHIFTBLACKLIGHT GRAY HEATHERACORN HEATHERNEPTUNE BLUE HEATHERDEEP NAVY COLOUR SHIFTHONEY GOLD+ 4 more
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SMARTWOOL
Classic Thermal Merino Base Layer Bottom Boxed (Men's) - SW016362
$140.00
SMLXL2XL
BLACKCHARCOAL HEATHERDEEP NAVYWINTER MOSS HEATHER+ 1 more
33% off
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SMARTWOOL
Merino 150 Boxer Brief (Men's) - SW014011 - Past Season
Select Styles $40.00 $59.99 Sale
SMLXL
BLACKBLACK STRIPEDEEP NAVY STRIPE
20% off
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RAB
Power Stretch Pro Pants (Men's)
$120.00 $150.00 Sale
SMLXL2XL
BLACK
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ICEBREAKER
Merino Anatomica Briefs (Men's)
$50.00
MLSXL
BLACKJET HEATHER
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ICEBREAKER
Merino 200 Oasis Leggings with Fly (Men's)
$125.00
SMLXL2XL3XL
BLACK
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ICEBREAKER
Merino 200 Oasis Long Sleeve Crewe Thermal Top (Men's)
$125.00
SMLXL2XL3XL
GRITSTONE HEATHERMIDNIGHT NAVYBLACK
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ICEBREAKER
Merino Anatomica Boxers With Fly (Men's)
$55.00
SMLXL
LODENJET HEATHERBLACKMIDNIGHT NAVYESTATE BLUE+ 2 more
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ICEBREAKER
Merino Anatomica Boxers (Men's)
$55.00
SML
JET HEATHERMIDNIGHT NAVYBLACK+ 2 more
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SWIX
Racex Bodyw Boxer Wind (Men's)
$55.00
SMLXL
BLACK
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SWIX
RaceX BodyW Boxer Wind (Men's)
$80.00
SMLXL
BLACK
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SWIX
RaceX BodyW Halfzip Wind (Men's)
$80.00
SMLXL
33% off
Quick buy
OUTDOOR RESEARCH
Vigor Bottoms (Men's)
$70.00 $104.95 Sale
SM2XL
BLACK
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SUGOI
RC Pro Liner (Men's)
$109.99
SMLXLXXL
BLACK
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SMARTWOOL
Intraknit Thermal Merino Base Layer 1/4 Zip (Men's) - SW016260
$170.00
SMLXL2XL
BLACK-WHITE
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SMARTWOOL
Intraknit Thermal Merino Base Layer Crew (Men's) - SW019286
$160.00
SMLXL2XL
BLACK-WHITE
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ARC'TERYX
Rho LT Crew Neck (Men's)
$120.00 Sold Out
ML
PYTHEAS-BLUE TETRA
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ICEBREAKER
Merino Anatomica Boxers (Men's) - Past Season
$55.00 Sold Out
SXXL
BLACK-MONSOONJET HTHR-BLACK
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SMARTWOOL
Classic Thermal Merino Base Layer Pattern 1/4 Zip Boxed (Men's)
$150.00 Sold Out
MLXL
BLACK MOUNTAIN SCAPE
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ICEBREAKER
Merino Central Classic Short Sleeve T-Shirt (Men's)
$80.00 Sold Out
MLXL
LODEN
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ICEBREAKER
Merino Tech Lite II Short Sleeve T-Shirt Skiing Yeti (Men's)
$100.00 Sold Out
MLXL
LAZURITE
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ICEBREAKER
200 Oasis Long Sleeve Crewe Baselayer Top (Men's)
$130.00 Sold Out
MLXL
CLOVEMIDNIGHT NAVY
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ICEBREAKER
Merino Wave Long Sleeve Stripe T-Shirt (Men's)
$110.00 Sold Out
SML
MIDNIGHT NAVY-GRAPE
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SMARTWOOL
Merino Sport Ultralite Mountain Bike ¾ Sleeve Tee (Men's)
$100.00 Sold Out
LXL
PICANTE
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SMARTWOOL
Ultralite Mountain Bike Short Sleeve Tee (Men's) - SW016552
$90.00 Sold Out
MLXL
SAGE HEATHER
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ICEBREAKER
Merino 175 Everyday Thermal Leggings With Fly (Men's)
$99.99 Sold Out
L2XL
BLACK
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ICEBREAKER
Merino Anatomica Boxers With Fly (Men's)
$55.00 Sold Out
XL2XL
ADMIRAL-WHITEJET-BLACKMIDNIGHT NAVY-BLUE
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ICEBREAKER
Merino Original Long Sleeve Half Zip Top (Men's)
$220.00 Sold Out
MLXL
BLACK