The invention relates to an upper part for a shoe, in which the dimensional design of its inside and outside provides considerable adjustability through assembly with fastening devices positioned and construction in such a way that it gives a highly stable upper part, the characteristics of which in terms of material and properties permit is adaptation to different sizes of feet. The upper part of the shoe is in the form of woven fabric or some other flexible material, the fastening devices are in the form of hook and loop-type fastening devices such as VELCRO, at least some of which exhibit circular form, and the under side of the outside of the upper part of the shoe exhibits connecting devices essentially for its detachable attachment to a sole or other under part of the shoe capable of being placed in contact with a floor.