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Men's Baselayer

80 Items

Men's ColdGear® Bodysuit
UA Exclusive

Men's ColdGear® Bodysuit

Price: $150.00
Men's HeatGear® Compression Shorts
Best Seller

Men's HeatGear® Compression Shorts

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

Men's HeatGear® Short Sleeve

Price: $30.00
Men's HeatGear® Sleeveless
New Colors

Men's HeatGear® Sleeveless

Price: $30.00
Men's HeatGear® Long Sleeve
New

Men's HeatGear® Long Sleeve

Price: $35.00
Men's HeatGear® Leggings
New

Men's HeatGear® Leggings

Price: $35.00
Men's Tactical HeatGear® Compression Short Sleeve T-Shirt
Best Seller

Men's Tactical HeatGear® Compression Short Sleeve T-Shirt

Price: $24.99
Men's HeatGear® OG Compression Short Sleeve

Men's HeatGear® OG Compression Short Sleeve

Price: $35.00
Men's ColdGear® Compression Mock
Best Seller

Men's ColdGear® Compression Mock

Price: $55.00
Men's HeatGear® Pocket Long Shorts

Men's HeatGear® Pocket Long Shorts

Price: $30.00
Men's HeatGear® Fitted Long Sleeve

Men's HeatGear® Fitted Long Sleeve

Price: $35.00
Men's HeatGear® Armour Mid Compression Shorts
Best Seller

Men's HeatGear® Armour Mid Compression Shorts

Original price: $27.99, Sale price: $20.97
Men's HeatGear® Fitted Short Sleeve

Men's HeatGear® Fitted Short Sleeve

Price: $30.00
Men's HeatGear® OG Compression Long Sleeve

Men's HeatGear® OG Compression Long Sleeve

Price: $40.00
Men's UA HeatGear® Armour Sleeveless Compression Shirt

Men's UA HeatGear® Armour Sleeveless Compression Shirt

Original price: $24.99, Sale price: $16.97
Men's ColdGear® Fitted Crew
Best Seller

Men's ColdGear® Fitted Crew

Price: $55.00
Men's HeatGear® Message Compression Shorts

Men's HeatGear® Message Compression Shorts

Original price: $35.00, Sale price: $25.97
Men's HeatGear® Compression Tank
UA Exclusive

Men's HeatGear® Compression Tank

Price: $25.00
Men's HeatGear® Mock Sleeveless

Men's HeatGear® Mock Sleeveless

Price: $30.00
Men's HeatGear® ¾ Leggings
New Colors

Men's HeatGear® ¾ Leggings

Price: $32.00
Men's ColdGear® Leggings
Best Seller

Men's ColdGear® Leggings

Price: $55.00
Men's HeatGear® Mock Long Sleeve

Men's HeatGear® Mock Long Sleeve

Price: $35.00
Men's ColdGear® Infrared Compression Printed Crew

Men's ColdGear® Infrared Compression Printed Crew

Original price: $80.00, Sale price: $59.97
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.