I have a tendency to get a jammed up ankle with too much running and jumping; it's significant enough that I got permanently exempted from the run component of my annual fitness test in the military, so no joke.

These shoes make me able--so far--to tolerate Insanity workouts.  They have excellent shock absorption and a pivot point as well, so I don't stick to the floor.  Also, they are apparently designed for a woman's foot, so they are wide enough in the toebox, tight enough in the instep.  I'd give it 6 stars if I could.  I do wish there was a color besides black, since I feel like I'm somewhat in an orthopedic shoe, but that's a very minor complaint and doesn't detract from the overall AWESOME that is this shoe.