These fit fine using their size chart.  This is not my first pair of vibrams; I've had sprint, flow, & KSO.  The classic dosn't stay on when running.

I got these to replace a pair of Vibram Sprint shoes that had the soles detach.  On race day I needed to make a duct tape wrap around the middle of the foot to keep it secure.  The Vibram 5 Finger Classic needs a strap over the top to secure them.