Purchase this Amari Cooper Autographed Full Size Replica Helmet - JSA Certified Authentic. It is the perfect gift for any Amari Cooper fan! This item is certified by James Spence Authentication, the leader in autographed sports memorabilia authentication, and comes with a Certificate of Authenticity. The item is also backed by our 100% Money Back Guarantee. Amari Cooper is one of the best young talents in the NFL this year! With Derek Carr under center, Cooper off to a great start to his NFL career and is a budding star! Be sure to check out Oakland Raiders memorabilia here at Sports Collectibles Online!