A wig or hair-piece according to claim 6, in which the mesh fabric is formed from bylon 6 or nylon 6.6 monofilaments having a mean diameter not greater than 73 ??m, a breaking load of from 0.50 to 0.728 lbs, a stiffness of 2:1 as determined by the loop test and wherein the fabric is a plain lace net or tulle produced on a bobbinette machine, has a mesh size of the order of 9 meshes per linear cm,