The invention relates to a multi-ply technical composite, usable in particular for making medical aids, garments and medical articles, comprising at least two layers (2,3), the first of which (2), in contact with the skin, is a cotton fabric (elasticised to a greater or lesser extent) or silk, or fabrics to which chitosan, silver or another antibacterial substance or active constituent is added, and the second, outer layer (3) is constituted by a semipermeable membrane, such as polyurethane between 5 and 80 microns thick, with considerable elasticity in order to ensure the user’s comfort. Receptors rechargeable with active constituents are inserted into fabric (2) and protected by the polyurethane membrane.