Let them know that you follow Gym Etiquette with this awesome invisible message shirt. A Sweat Activated Shirt that is completely invisible until you sweat. 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.