What is the name/brand of the hat that Michael Phelps wears when he's waliking into the stadium?

Question

I've been seeing michael wear some kind of baseball cap durin the olympics while he's walking into the stadium. Anyone know the brand and where I can get it?

Answer 1

I think that its Adidas!...I'm not really sure though!

that's what it looks like!

Answer 2

Its speedo dude he always wear that since its his sponsors . he is gettinbg alot of money just wearing it