Abstract: A clip joins a face mask to a helmet, the helmet having an elongate element like a wire and the face mask having a recess in the form of an elongate slot. The clip has two similar halves integrally pivoted together and defining adjacent the pivot region a receiving cavity for the elongate element. Each half of the clip is adapted to co-act resiliently with the recess to be retained by and in it.
Abstract: A helmet having a front shell and a rear shell movable with respect to each other. Portions of the two shells overlap each other and present mating surfaces which can engage to retain the shells in a given overlapping position and can disengage to allow the shells to change their relative position. A device is provided for selectively (a) holding the mating surfaces in engagement, or (b) releasing them to disengage.