This Autographed White Pro Style Jersey has been Personally Signed by Felix Hernandez of the Seattle Mariners. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by JSA. The authenticity can be verified on JSA website. This is a X-Large sized; non-branded; custom-stitched Jersey. This jersey will not come with its matching JSA card. However; its authenticity can still be searched for and verified in JSA's database.