Biltwell Unisex-Adult Open face Bonanza 3/4 Helmet (Flat Titanium, Large) Injection-molded ABS outer shell with hand-painted finish expanded polystyrene inner shell Hand-sewn removable brushed Lycra liner with contrasting diamond-stitched quilted open-cell foam padding Rugged plated Steel D-ring neck strap with adjustment strap end retainer Meets DOT safety standards XPS through XXL sizes