This Autographed Navy Blue Nike Game Jersey has been Personally Signed by Percy Harvin of the Seattle Seahawks. This item is 100% Authentic and comes with a PSA/DNA Certification numbered Hologram. Please note that PSA/DNA no longer provides serial-numbered COA cards, and the attached PSA/DNA sticker will serve as the complete authentication for this item. This is a PSA in the Presence Authenticated item which means a PSA representative was present when this item was being signed. The authenticity can be verified on Professional Sports Authenticator website. This is a X-Large sized Jersey.