Vibram Five Fingers I switched to Vibram Five Fingers after one my arches collapsed while I ran the Boston Marathon in Asics earlier this year. Your feet will hurt at first from wearing these, because you've never run on the ball of your foot - even though that's what you're designed to do. But your foot muscles will strengthen greatly and quickly ( I no longer have flat feet after 3 months!) - and for those with shin splints in particular, the injury risk is much reduced because impact energy is no longer transferred up the leg (no more heel striking). Add pose running to that for 10% greater energy efficiency and even less injury risk, sprinkle in some Crossfit for all-round fitness, and you'll score on the runs, pull-ups and push-ups like never before.