A sneaker that Jimmy Butler wore in his 2013-14 season with the Chicago Bulls is the adidas adiPure Crazy Ghost.
The shoe was worn by guards and forwards alike, as players like Jrue Holiday and Kenneth Faried laced up the Crazy Ghost consistently.
The Ghost name is a reference to the lightweight SprintWeb upper, which was used widely in the adiZero Ghost (that Butler also wore) as well as the CrazyLight sneaker. The adiPure in the name refers to the Pure Motion sole, with has notches for extra flexibility for your feet.
The adidas adiPure Crazy Ghost is currently unavailable.