Rider Lotus DOT helmets are manufactured in accordance with the latest technology and safety standards and are specifically designed for motorcycling. These helmets meet or exceed DOT standards for every U.S. state. Helmet shells are constructed of an extremely durable ABS Thermoplastic resin. An impact-absorbent inner liner and inner comfort padding provides extra protection and the perfect fit. Our noise-reducing ear flaps easily accommodate blue tooth devices or headphone ear buds. Underneath is a fully adjustable chin strap with heavy-duty D-ring fasteners. Snap buttons on either side of open face models make it easy to attach an optional face shield (not included).