St Louis Rams Riddell Speed Throwback 81-99 Replica Full Size Football Helmet. This full size St Louis Rams 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. The officially licensed NFL St Louis Rams helmet is great for autographs and features Rams team logo decals on both sides. The striking shape of the game! NFL St Louis Rams Replica Speed helmet size medium measures: 12.75"(L), 9.25"(W), 9.75"(H). NFL St Louis Rams Full Size Speed Replica Helmet. (NOT FOR WEARING)