^Yes, it is flexible and has benefits for you, but nothing beats barefoot. WE ARE NOT BORN WITH SHOES!!!natural is the best solution imo.
nike frees = good
vibram fivefinger = better
barefoot = best
I never had a sprained ankle, but I had a injury in my foot recently which kept me out for 2 months. My podiatrist told me that the best way to strengthen yourlower legs and feet is to go barefoot when you are not playing or you can also buy yourself some vibram five fingers.