【Package Included】You will receive a MXJ Gear full face motorcycle helmet, tinted visor and a replacement transparent visor. Provide a sufficient guarantee for your day and night riding view. 【High Quality & DOT Approved】MXJ Gear MG666 motorcycle helmets meets DOT & FMVSS 218 safety standards. And Our full face helmet adopts Lightweight ABS shell,breathable and comfortable EPS lining Material,It brings high-strength protection and excellent pressure-resistant buffer performance. 【Full Fae Motorcycle Helmet Size】Our motorbike helmets include Adult S/ M/ L/ XL/ XXL 5 sizes.S:55-56CM (21.65-22.04 in) / M:57-58(22.44-22.83 in) / L:59-60 (23.22-23.62 in) / XL:61-62 (24.01-24.4 in) / XXL:63-64 (24.8-25.19 in). Our motorcycle helmets for men and women feature precision contouring for secure, all-day comfort. 【Ventilation & Heat Dissipation】Our full face motorcycle helmet has multiple well-designed vents on the mouth,top, front and back of the helmet, which can promote air circulation and provide optimal ventilation and heat dissipation, which can promote air circulation and keep your head cool and comfortable during long rides, suitable for any summer or winter riding environment. 【Comfortable & Breathable】Our motorbike helmet lining are removable, washable and replaceable for comfort and breathability.,keeping you dry and comfortable every time you wear it. Motorcycle Helmets,Full Face Motorcycle Helmet,Helmets for Adults Motorcycle, MG611 Motorbike Racing Street Bike Helmets with  Black Visor for Men Women, DOT Approved  Full face motorcycle helmet suits ATV, motocross, street bike, dirt bike, motorcycle, mountain bike, touring, dual sports and other outdoor riding activities. Helmet Size: Adult S: 55-56CM (21.65-22.04 inch) Adult M: 57-58(22.44-22.83 inch) Adult L:  L:59-60 (23.22-23.62 inch) Adult XL:61-62 (24.01-24.4 inch) Adult XXL: 63-64 (24.8-25.19 inch) Features： 1.Safety Certified: The MXJ Gear MG666 full-face helmet meets DOT & FMVSS 218 standards, featuring a lightweight ABS shell and breathable EPS lining for high-strength protection and pressure resistance. 2.Package Contents: 1 full-face helmet, 1 tinted visor, 1 transparent replacement visor for day-and-night riding visibility. 3.Size Options: Adult sizes S (55–56cm) / M (57–58cm) / L (59–60cm) / XL (61–62cm) / XXL (63–64cm); precision-contoured for all-day comfort. 4. Ventilation System: Multi-position vents (mouth, top, front, back) boost air circulation for heat dissipation, ideal for year-round riding. 5. Comfort & Hygiene: Removable, washable, replaceable lining ensures breathability and dryness. Packing Included：1pc full face helmet with transparent visor and 1pc black visor Customer Service: If you have any questions or product problems when receive our motorbike helmets, please feel free to contact us. We will contact you and help to solve in 24 hours.