The Men's Colosseum Navy Colorado School of Mines Orediggers Arch Over Logo Pullover Sweatshirt is the perfect way to show your support for the Colorado School of Mines Orediggers. Made of a comfortable cotton and polyester blend, this midweight sweatshirt features embroidered fabric applique, rib-knit cuffs, and waist. Whether you're cheering on the Orediggers at a game or just showing your school spirit, this sweatshirt is sure to keep you warm and comfortable.