What kind of hat is Graeme mcdowell wearing at the us open? (don't say Callaway, idiots)?

This hat is currently only available in Europe at this time according to a representative from Callaway. It's not a Diablo and it's not a worman's sport hat. The rep said they're working on making it available in the U.S. Sure is nice looking though. I'll think they can sell a lot of them here in no time.