Hci-100 Designer Helmets Hci-100 Designer Helmets have that classic half helmet style that lives on. A polycarbonate shell featuring an expanded polystyrene liner and a screw-on visor. Features: Shell is made of a durable fiberglass with a expanded polystyrene liner Outside has a flat finish to fight off finger prints Screw-on shorty visor DOT Approved Note: For an easier on/off please see The Fast Hook 132-660 or Quick Release Buckle 130-053.