Hawk ST-1150 Glossy Dual Visor Full Face Motorcycle Helmet with U.S. Marines Gr - 2X-Large Lightweight thermoplastic resin shell Retractable inner smoked shield remotely operated by sliding an outer switch Advanced ventilation system with adjustable air vents and a push-button breath guard Advanced ventilation system: 2 back air vents, 1 top push-button air vent, 2 top slide air vents &amp; 1 push-button breath guard Removable, washable plush interior