Sporty shape bicycle helmet offers aggressive styling. Features True Fit system helps to ensure a correct fit. Includes 16 vents to help keep heads cool on hot days, a visor offers protection from the sun and elements, and Tapeless technology keeps the graphics looking smooth. Pinch Guard buckle for no-pinch buckling. Certification Complies with the US CPSC safety standards For Bicycle Helmets For Persons Age 5 and Older.Fits head sizes: 54 cm to 58 cm (21 In. to 23 In.). Helmet design may vary. Intended Age: Ages 8 & Up Type: Boy's Head Circumference: 21 In. to 23 In.