Under Armour HeatGear® was designed nearly a decade ago as the original "Second Skin" layer, which sparked the revolution of performance apparel and rendered cotton t-shirts obsolete.  HeatGear® is engineered with the Under Armour Fabric, a microfiber blend featuring our signature Moisture Transport System and reliable compression.  It's designed to fit tight to your skin.  FOR WHEN IT'S HOT!

Ideal Use:  Extremely Warm Weather

Under Armour uses sleek, heat transferred labels that won't irritate your skin. The size is clearly displayed on each label, and there is plenty of room for your team number if needed.

The Under Armour boxer is cut for a comfortable fit with full leg coverage offering a comfortable and lightweight compression fit. The breathable vent mesh performance pouch gives you support without sacrificing comfort. HeatGear® fabric guarantees you are cool, dry and comfortable. 5.75" inseam.