The Under Armour Performance Polo is a men's golf shirt made of a blended fabric of polyester and spandex. It features a colorblock design in black and gray, a collared neckline, and short sleeves. The shirt is loose-fitting and has a medium fabric wash. It is part of the Under Armour product line and is designed for outdoor and sports activities. The shirt is stretchy and breathable, making it ideal for golfing.