Chris Mullin, former All-American for the St John's Red Storm, has hand signed this white custom jersey at a private signing. Jersey is size XL and all letters/numbers are sewn-on. This item is authenticated by Beckett Authentication Services and was signed in the presence of one of their representatives. Their tamper-evident hologram featuring a QR code and serial number is on the item. The authenticity can be verified online by entering the serial number or scanning the QR code.Item pictured may not be the exact item you will receive. It will be similar quality, and we guarantee your satisfaction.