In some embodiments, an exoskeleton device for providing gait/movement assistance to users, and more particularly, methods and apparatuses for attaching such devices to a limb of the users, are presented. In some embodiments, the apparatus may comprise a support, a support holder, and a retaining element for retaining the support secured to the support holder at least when the apparatus is in use. In some embodiments, the attachment of the support to the support holder may be configured so as to allow the support a range of translational and/or rotational degrees of motion.