1、Easy to grip and carry. 2、In-mold streamline design, cut down wind resistance when riding. 3、Special design to keep the weight to an absolute minimum without sacrificing safety or quality. 4、Lined with high-density EPS foam, great shock absorption. 5、PC shell with high strength, solid, durable, good anti-deformation and high conservation level. 6、Removable lining, easy to clean and avoid bacterial growth. 7、Multiple air vents for an outstanding airflow and cooling effect. 8、Adjustable knob for quick and easy adjust to your cozy fit. 9、Detachable visor protects your eyes from glaring sunlight effectively. 10、Reducing the potential risk effectively like sunshine, branches, rainwater, etc. The bike helmet is special designed with a detachable visor, protects your eyes from glaring sunlight effectively. A adjusting knob at the back of the bike helmet, helps to adjust the head circumference. Features: Easy to grip and carry. In-mold streamline design, cut down wind resistance when riding. Special design to keep the weight to an absolute minimum without sacrificing safety or quality. Lined with high-density EPS foam, great shock absorption. PC shell with high strength, solid, durable, good anti-deformation and high conservation level. Removable lining, easy to clean and avoid bacterial growth. Multiple air vents for an outstanding airflow and cooling effect. Adjustable knob for quick and easy adjust to your cozy fit. Detachable visor protects your eyes from glaring sunlight effectively. Reducing the potential risk effectively like sunshine, branches, rainwater, etc. Specifications: Material: EPS + PC. Color: Red / Blue + black / Green / Peacock blue / Red + white / Black  (optional). Head Circumference: 56-62 cm / 22.0 * 24.4 in Product Size: 33.5 * 21.5 * 19 cm / 13.2 * 8.5 * 7.5 in Product Weight:  362 g / 12.8 oz Packing Size: 40 * 23 * 23 cm / 15.7 * 9.1 * 9.1  in Packing Weight: 370 g / 13.1 oz Package List: 1* Helmet 1* Helmet