West Virginia Mountaineers Full Size Speed Replica Helmet by Riddell. This full size Iowa 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 helmet is great for autographs and features Iowa team logo decals on both sides. The striking shape of the future. Iowa State Replica Speed helmet size medium measures: 12.75"(L), 9.25"(W), 9.75"(H). Iowa State Cyclones Full Size Speed Replica Helmet. (NOT FOR WEARING)