We work very closely with Percy Harvin and are proud to offer some of his game used items from the 2010 NFL Season. Each item was worn by Percy Harvin and hand signed. It will be accompanied by a Certificate of Authenticity from Palm Beach Autographs. A tamper-evident hologram will be affixed to the item. Signed items are guaranteed to pass any third-party authentication with 100% Money Back Guarantee. Each signature is witnessed by a member of our staff or comes out of a private signing.