With the "Five Fingers" to run and go is a completely new experience, a new freedom for the stunted by firmly and muffled footwear foot! Nothing is healthier than going barefoot, only used must walk to it. So take things in sports only once slowly, otherwise will bring you the best muscle and tendon injuries! But regardless of the sport: Who ran times a day in the Vibrams around, realizes how much more relaxed and healthier feel his feet at night. I always coat a real urge to move when I put on my shoes. As for the size, recommended to measure and compare the table on the Vibram page that matched pretty well. Have fun with it!