Supima Sweatpant by Athletegy. Our sweatpants are an exceptional blend of high performance, durability, and comfort. Made with 100% Supima cotton, these sweatpants offer a soft feel that is unmatched by any other cotton blend. The texture is smooth and breathable making it an ideal choice for sweatpants that offer high performance. They are designed to fit perfectly to provide that sporty yet casual look.