This Sidney Crosby Pittsburgh Penguins pro white jersey has been hand signed by the Sidney and is a great addition to any collection. The jersey is a pro-grade made by adidas. A Frameworth hologram and certificate of authenticity are both included to ensure the legitimacy of the autograph. Frameworth does not guarantee jersey sizing but typically stocks sizes 48,52,54 & 56. Frameworth Sports Marketing is the official autograph source of Sidney Crosby memorabilia. Every signed product comes fully certified with a Certificate of Authenticity.