This Sport-Tek men's tee is great for gym workouts, running, and team events. It's designed for men who love sports and value comfort. The tee comes in different sizes and color combos. It's made of 4.4 - 4.6 - ounce 75/13/12 poly/cotton/rayon jersey with PosiCharge technology and 3.7 - ounce 100% polyester tricot mesh, also with PosiCharge technology. It has a removable tag for comfort and relabeling, and open - hole mesh at key areas for breathability.