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Under Armour > Clothing & Footwear > Men's Clothing > Men's Base Layers > Heavyweight >

Under-Armour>Clothing & Footwear>Men's Clothing>Men's Base Layers>Heavyweight>

Mens Clothing & Apparel - Outfit yourself in the right clothes for your next adventure. Whether it's boardshorts and rash guards for your next ride, shirts for fishing, or rainwear and outerwear to keep you dry and warm, we have the clothes to get you going. Our wide selection of brands includes Columbia, Carhartt, Under Armour, Billabong, Quicksilver, Rip Curl, and Ten-80.

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Under Armour Men's Base 3.0 Crew

Under Armour Men's Base 3.0 Crew

Key Features
  • 7-oz. 93% polyester, 7% elastane w/4-way stretch

  • Base 3.0: max warmth for "extreme" cold conditions

  • ColdGear technology: warm, dry, and light

  • ArmourBlock anti-odor technology helps reduce BO

  • Ergonomic flatlock seams and raglan sleeves

$74.99
$59.96
Under Armour Men's Base 3.0 1/4-Zip Shirt

Under Armour Men's Base 3.0 1/4-Zip Shirt

Key Features
  • 7-oz. 93% polyester, 7% elastane w/4-way stretch

  • Base 3.0: max warmth for "extreme" cold conditions

  • ColdGear technology: warm, dry, and light

  • ArmourBlock anti-odor technology helps reduce BO

  • Ergonomic flatlock seams and raglan sleeves

$84.99 - $94.99
$59.96
Under Armour Men's Base 3.0 Legging

Under Armour Men's Base 3.0 Legging

Key Features
  • 7-oz. 93% polyester, 7% elastane w/4-way stretch

  • Base 3.0: max warmth for "extreme" cold conditions

  • ColdGear technology: warm, dry, and light

  • ArmourBlock anti-odor technology helps reduce BO

  • Ergonomic flatlock seams and performance waistband

$74.99
$54.96
Under Armour Men's Base 4.0 Crew

Under Armour Men's Base 4.0 Crew

Key Features
  • 4-way stretch, 7.25-oz. 96% polyester, 4% elastane

  • Base 4.0: ultra warmth for "brutally" cold weather

  • ColdGear technology: warm, dry, and light

  • ArmourBlock anti-odor technology helps reduce BO

  • Ergonomic flatlock seams and raglan sleeves

$84.99
$79.96
Under Armour Men's Base 3.0 Long-Sleeve Crew Shirt

Under Armour Men's Base 3.0 Long-Sleeve Crew Shirt

Key Features
  • Rugged 93% polyester, 7% elastane ColdGear fabric

  • Patented negative grid interior traps hot air

  • Four-way stretch fabrication for maximum mobility

  • ArmourBlock antimicrobial technology fights odors

  • Signature Moisture Transport System wicks sweat

$74.99 - $84.99
Under Armour Men's Base 3.0 Legging

Under Armour Men's Base 3.0 Legging

Key Features
  • Rugged 93% polyester, 7% elastane ColdGear fabric

  • Patented negative grid interior traps hot air

  • Four-way stretch fabrication for maximum mobility

  • ArmourBlock antimicrobial technology fights odors

  • Signature Moisture Transport System wicks sweat

$74.99 - $84.99
Under Armour Men's Base 4.0 Long-Sleeve Crew Shirt

Under Armour Men's Base 4.0 Long-Sleeve Crew Shirt

Key Features
  • Rugged 96% polyester, 4% elastane ColdGear fabric

  • Soft, brushed negative grid interior traps hot air

  • Four-way stretch fabrication for maximum mobility

  • ArmourBlock antimicrobial technology fights odors

  • Signature Moisture Transport System wicks sweat

$84.99
Under Armour Men's Base 4.0 Legging

Under Armour Men's Base 4.0 Legging

Key Features
  • Rugged 96% polyester, 4% elastane ColdGear fabric

  • Soft, brushed negative grid interior traps hot air

  • Four-way stretch fabrication for maximum mobility

  • ArmourBlock antimicrobial technology fights odors

  • Signature Moisture Transport System wicks sweat

$84.99 - $94.99
Under Armour Men's ColdGear Infrared Scent Control TEVO Long-Sleeve Crew Shirt

New! Under Armour Men's ColdGear Infrared Scent Control TEVO Long...

Key Features
  • Moisture-wicking 88% polyester, 12% elastane blend

  • UA Scent Control suppresses odor-causing bacteria

  • ColdGear Infrared absorbs and retains body heat

  • Ergonomic flatlock seams for reduced chafing

  • Crew-neck collar; full front/rear access zippers

$74.99 - $84.99
Under Armour Men's Extreme Base Baselayer Top

New! Under Armour Men's Extreme Base Baselayer Top

Key Features
  • Moisture-wicking 100% polyester shell

  • High-pile fleece lining for superior warmth

  • UA Scent Control; ArmourBlock anti-odor treatment

  • Strategic stretch panels offer an improved fit

  • Mock-neck collar; quarter-length front zipper

$79.99 - $89.99
Under Armour Men's Extreme Base Baselayer Bottom

New! Under Armour Men's Extreme Base Baselayer Bottom

Key Features
  • Moisture-wicking 100% polyester shell

  • High-pile fleece lining for superior warmth

  • UA Scent Control; ArmourBlock anti-odor treatment

  • Strategic stretch panels offer an improved fit

  • Off-axis set waistband for additional coverage

$79.99 - $89.99
Under Armour Men's ColdGear Infrared Scent Control TEVO Legging

New! Under Armour Men's ColdGear Infrared Scent Control TEVO ...

Key Features
  • Moisture-wicking 88% polyester, 12% elastane blend

  • UA Scent Control; ArmourBlock anti-odor treatment

  • ColdGear Infrared absorbs and retains body heat

  • Ergonomic flatlock seams for reduced chafing

  • Off-axis set waistband for additional coverage

$79.99 - $84.99

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