The 90th PGA Championship was held in 2008 at Oakland Hills (Bloomfield Township, Michigan) and won by Padrig Harrington. This is a brand new hat from that event, with its tag still attached, that was signed by Harrington. Harrington, with three majors to his credit, won both the British Open and the PGA that year.
The red TW hat is from the 2006 Buick Open, and it has Tiger Woods autograph embroidered on the side. This hat also has its original tag attached. Both hats remain like new.