subject: Vibram Five Fingers A Barefoot Movement [print this page] Initially, it might get a little tough to get all toes in the required pockets of these shoes specially the little toe. This is because our toes are so used to getting cramped up together in shoes; the muscles in between the toes get weak. After few days of using them, you will notice that your feet will strengthen, the ankle will have better balance, and the toes will spread out a little to give better grip. The material used the sole is rubber and the upper surface is made of leather or thin, abrasion-resistant stretch polyamide fabric which provides extreme grip and protection in both wet and dry conditions. They are as lightweight as 150 grams that you will hardly notice you are wearing them apart from the protective shield you will feel around your feet.