(under subclass 410) Device in which one or more parts of a helmet directly engage the head of a wearer to support the helmet on the head of the wearer, and in which said part(s) may be positioned or repositioned relative to each other or may be positioned or repositioned relative to the helmet to accommodate said head-engaging parts to the head dimensions of different wearers having different head dimensions.
(1) Note. This subclass provides for a vertical adjustment of the helmet, that is, for an adjustment for height of crown of the wearer's head.
