John Mateer Signed Oklahoma Sooners Proline Speed Helmet (Boomer Sooner Inscription)
Own an impressive piece of Oklahoma Sooners football memorabilia with this John Mateer autographed Proline Speed helmet, featuring the iconic Oklahoma Sooners design and a bold "Boomer Sooner!" inscription. This full-size display helmet makes a standout addition to any Sooners collection, fan cave, office, or sports memorabilia display.
Hand-signed by John Mateer, this premium Proline Speed helmet showcases one of college football's rising stars and is an excellent collectible for dedicated Oklahoma fans, alumni, and memorabilia enthusiasts.
• Genuine John Mateer hand-signed autograph
• Full-size Oklahoma Sooners Proline Speed helmet
• Features "Boomer Sooner!" inscription
• High-quality display collectible for fans and collectors
• Official Oklahoma Sooners team design and colors
• Includes a holographic authentication sticker affixed to the item
• Perfect for sports rooms, offices, fan caves, and memorabilia displays
• Great gift for Oklahoma Sooners fans and collectors
Whether displayed in a collection or given as a special gift, this signed Oklahoma Sooners helmet is a centerpiece-worthy collectible that celebrates one of college football's most recognizable programs.




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