Schwinn Merge Microshell Girls" Bicycle Helmet, Pink/Black, Youth: * Ventilation: 20 flow vents * Dial-fit retention system allows for easy, on-the-fly adjustment * Dual-stitch straps are soft to the touch for added comfort * Removable visor protects you from the elements * CPSC approved * Pink/Black Schwinn Bicycle Helmet fits head circumference: 22.83" to 23.62"