This Sport-Tek men's tee is great for gym workouts or running. It's designed for men who love sports or need comfortable work attire. It comes in different sizes and color combinations. The tee uses PosiCharge technology and has a 4.4-ounce 75/13/12 poly/cotton/rayon jersey (4.6-ounce for Black Triad Solid), with 3.7-ounce 100% polyester tricot mesh. There's an open-hole mesh at the shoulders, back yoke, and underarms, and a removable tag for comfort.