Only available in Japan, unfortunately (check the via link for more).
There's plenty of more Mario swag here, however!
Check out more nerdtastic custom kicks right here!
Pretty sure the right shoe is going to take this one. Last I checked, Ryu is at least 6-4 in this matchup, and he can keep her away indefinitely from that distance on the screen.
Oh yeah, there's also more pictures in the via link!