form of a sleeve suited to cover the wrist the metal mesh of the end section 3 can be oriented in the same direction as that covering the u2018 hand u2019 section 2 or in a different direction the extension section 3 is in the form of a complete sleeve without any lateral slots its end opening 4 exhibits sizes that are barely sufficient to enable inserting the hand smoothly the end rim of the extension 3 that delineated the opening 4 for inserting the hand comprises a peripheral flange 6 consisting of an add on circular buckle 8 of rigid fabric forming an insert housed inside a hem 9 this hem 9 is obtained by the combination of the line of end rings of the extension 3 with the body of the metal mesh fabric preferably on the side of the external face of the said fabric in order to increase the outward protrusion this combined arrangement uses a seam with metal rings that are identical or similar to those of the metal mesh fabric the end rim of the extension 3 that delineated the opening 4 for inserting the hand comprises a peripheral flange 6 consisting of an add on circular buckle 8 of rigid fabric forming an insert housed inside a hem 9 this hem 9 is obtained.