Abstract: The present invention relates to a load transfer belt adapted to carry at least one accessory of a passive exoskeleton, the load transfer belt comprising, on the one hand, coupling means of an accessory of a passive exoskeleton and, on the other hand, a backrest equipped with two lateral flanks which extend laterally from a fastening end connected to the backrest towards a free end. According to the invention, each lateral flank comprises a first rigid portion which extends from the fastening end towards the free end.