I have been thinking of buying those for some time now. I sometimes suffer from plantar fasciitis, and need extra support on the instep. i also overpronat so i need soppurt on the "heel" aswell.The Muay Thai school I train at recently moved to a new location and mats had not yet been installed. Since we normally have nasty weather in upstate New York everyone trained for a few weeks wearing shoes. The shoes I wore are called Vibram Five Fingers KSO. They are the best at simulating bare foot exercise and are amazing running shoes. You can buy them at numerous retailers online or from Vibram directly.