Carrier vehicle, theft-proof canvas and theft-proof strap

A carrier vehicle comprises a loading space (20) bounded by canvas (24). The canvas lies against a frame (22) and thereby defines a spatial periphery of the loading space. Attached to a main surface of the canvas is a strap (40) comprising a flexible, monolithic strap body of plastic with a core which is wholly enclosed by the body and in which a theft-proof member (50) extends over at least substantially the full length of the body. The strap body comprises on either side of the core a lateral wing (42) with which the body is firmly connected to the canvas (24).