Shop the Gamma Sigma Apparel Store for a wide selection of men’s t-shirts at Prep Sportswear. With short sleeve, long sleeve and tank style tees available, there are hundreds of different ways for you to customize Gamma Sigma t-shirts for men. Whether you are a pledge, member, house president or alumni, your customized Gamma Sigma clothing shows your pride and support for Gamma Sigma. Looking for something a little warmer than a t-shirt? Check out our collection of customizable Gamma Sigma Men’s Sweatshirts , Outerwear and Hats .