Full Size Speed Replica NCAA Helmet by Riddell. This full size helmet is designed with a non-wear plate so the helmet cannot be placed on your head. Designed with a steel polyvinyl-coated helmet face guard, 4-pt chin strap and molded foam jaw pads. Medium sized speed helmet shell with elliptical air vents. The striking shape of the future. This officially licensed helmet is great for autographs. Features team logo decals and colors. Replica Speed helmet size medium measures: 12.75"(L), 9.25"(W), 9.75"(H). Full Size Speed Replica Helmet. (NOT FOR WEARING)