Tennessee Titans Full Size Authentic Revolution Speed NFL Helmet by Riddell. This full size Titans helmet is designed with extended mandible (jaw area) protection, a steel polyvinyl-coated face mask, chin strap, increased padding, an integrated facemask attachment system and elliptical air vents. NFL Team name on back bumper (except Chiefs, Steelers and Giants). The officially licensed Tennessee Titans helmet is great for autographs and features Titans team logo decals on both sides. The striking shape of the future. NFL Titans Authentic Revolution Speed helmet size is 13.5"(L) x 9.75"(W) x 10.25"(H). NFL Tennessee Titans Full Size Helmet.