cotton socks cotton thongs made from 100% natural materials soft, very thin non-molded sole extra flexible in all directions rubberized, non-slip sole very light, easy to adapt to the shape of the foot, soft even behind the heel suitable for average feet, higher instep not recommended for the dominant thumb, the shoes do not have an ideal toe box shape, it is rather round, not anatomically asymmetrical without vamp, but the part behind the heel is not completely soft, it bends with light pressure rubber band in the instep, which cannot be tightened more detailed description of the brand: Click here Nanga Moonstar Dunkelblau barefoot sandals