Under Armour Black Heat Gear Rib 1/4 Zip Sweat Top

Back in 1996, we invented the baselayer—and we've been perfecting it ever since. It took 37 prototypes and endless hours of testing to create the right light, tight layer that wicks sweat, dries fast, and keeps you cool. Comes in Black. 86% Polyester, 14% Elastane.