Notre Dame Fighting Irish Authentic Speed Football Helmet. Perfect item for autographs and collectors. This full size Notre Dame 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 Notre Dame Fighting Irish helmet is great for autographs and features Fighting Irish team logo decals on both sides. The striking shape of the future. NCAA Fighting Irish Authentic Revolution Speed helmet size is 13.5"(L) x 9.75"(W) x 10.25"(H). NCAA Notre Dame Fighting Irish Full Size Helmet.