Clemson Tigers NCAA Replica Speed Football Helmet. This full size Clemson helmet is designed with a non-wear plate and molded foam jaw pads. a steel polyvinyl-coated face mask, 4-pt chin strap, and elliptical air vents. This officially licensed NCAA helmet is great for autographs and features  NCAA Clemson Replica Speed helmet size medium measures: 12.75"(L), 9.25"(W), 9.75"(H).