Colorado Buffaloes Authentic Speed Football Helmet. Perfect item for autographs and collectors. This full size Colorado Buffaloes 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. NCAA Team name on back bumper. The officially licensed Colorado Buffaloes helmet is great for autographs and features Colorado Buffaloes team logo decals on both sides. The striking shape of the future. NCAA Trojans Authentic Revolution Speed helmet size is 13.5"(L) x 9.75"(W) x 10.25"(H). NCAA Colorado Buffaloes Full Size Helmet.