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