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Men's Baselayer

78 Items

Men's ColdGear® Leggings
Best Seller

Men's ColdGear® Leggings

Price: $55.00
Men's UA Base 4.0 Crew
Best Seller

Men's UA Base 4.0 Crew

Price: $100.00
Men's UA Iso-Chill Compression Tank
New Colors

Men's UA Iso-Chill Compression Tank

Price: $50.00
Men's UA Iso-Chill Compression Short Sleeve
New Colors

Men's UA Iso-Chill Compression Short Sleeve

Price: $50.00
Men's UA Iso-Chill Compression Long Shorts
New Colors

Men's UA Iso-Chill Compression Long Shorts

Price: $50.00
Men's HeatGear® Printed Long Shorts
New Colors

Men's HeatGear® Printed Long Shorts

Price: $35.00
Men's HeatGear® Message Compression Tank

Men's HeatGear® Message Compression Tank

Original price: $35.00, Sale price: $25.97
Men's ColdGear® Infrared Long Sleeve Golf Mock

Men's ColdGear® Infrared Long Sleeve Golf Mock

Price: $70.00
Men's HeatGear® Message Compression Short Sleeve

Men's HeatGear® Message Compression Short Sleeve

Original price: $35.00, Sale price: $25.97
Men's UA Base 4.0 ¼ Zip
Best Seller

Men's UA Base 4.0 ¼ Zip

Price: $110.00
Men's HeatGear® Printed Long Shorts

Men's HeatGear® Printed Long Shorts

Original price: $35.00, Sale price: $25.97
Men's UA Base™ 3.0 Hoodie
New

Men's UA Base™ 3.0 Hoodie

Price: $85.00
Men's ColdGear® Infrared Printed Leggings

Men's ColdGear® Infrared Printed Leggings

Original price: $80.00, Sale price: $59.97
Men's UA Tactical ColdGear® Infrared Base Mock
New

Men's UA Tactical ColdGear® Infrared Base Mock

Price: $60.00
Men's UA Base 2.0 Crew
Best Seller

Men's UA Base 2.0 Crew

Price: $60.00
Men's UA Tactical ColdGear® Infrared Base Crew

Men's UA Tactical ColdGear® Infrared Base Crew

Price: $60.00
Men's UA Base 2.0 Leggings
Best Seller

Men's UA Base 2.0 Leggings

Price: $60.00
Men's HeatGear® Iso-Chill Printed Tank
New

Men's HeatGear® Iso-Chill Printed Tank

Price: $55.00
Men's HeatGear® Compression Mock Short Sleeve

Men's HeatGear® Compression Mock Short Sleeve

Price: $30.00
Men's Curry HeatGear® Printed Shorts
New

Men's Curry HeatGear® Printed Shorts

Price: $50.00
Men's UA Football 6-Pocket Girdle

Men's UA Football 6-Pocket Girdle

Price: $30.00
Men's HeatGear® Printed Short Sleeve
New

Men's HeatGear® Printed Short Sleeve

Price: $40.00
Men's UA Base 3.0 Crew
Best Seller

Men's UA Base 3.0 Crew

Price: $70.00
A Men’s Baselayer for Every Season

Made to be the first thing you put on and the last thing you take off, Under Armour men’s baselayer clothing helps serve as a second skin that lets you perform no matter the weather conditions. HeatGear® helps you stay cool when the weather gets hot, ColdGear® keeps you warm when things get chilly, and UA Base 2.0, 3.0, and 4.0 keep you ready for every activity.

When it comes to our men’s baselayer clothing, Under Armour has got you covered for pretty much every season, and every sport or activity.

Our men’s baselayer clothing with HeatGear® is built for when things get hot. HeatGear® compression baselayers hug your muscles yet allow you to move comfortably in every direction. Plus, HeatGear® wicks sweat and dries quickly so you don’t overheat.

Flip the switch over to our men’s ColdGear® baselayers. ColdGear® keeps your warm when the weather gets chilly. Shop our men’s ColdGear® leggings. They’ve got dual-layer fabric that brings a warm interior and a smooth exterior that dries fast. 

Shop our UA Base™ men’s baselayer clothing. UA Base 2.0 is made for high activity in cold weather, 3.0 is made for moderate activity in very cold weather, while 4.0 is for low activity levels in extreme weather. UA Base 4.0 is our warmest baselayer yet. UA Base uses a pattern designed to trap heat without adding the extra bulk.

Whether you’re hitting the gym or enjoying the great outdoors, our men’s baselayer collection is your go-to choice for unbeatable comfort and performance.