Included in this Bundle: Hustle For That Muscle, Hard Work, Savage Mode.
A message that is completely invisible until you sweat so you know when it's time to go home. Featuring Omegastretch and Ultrasoft fabric to give you the mobility and comfort you need on a workout shirt.
Our Sweat Activated T-Shirts have a hidden message that only shows when you sweat.
Our unique formula and process guarantees that the design is 100% invisible when the T-Shirt is dry, and has high contrast when wet.