Schwinn Merge Microshell Bicycle Helmet, Adult: * Helmet Type: adult bicycle helmet * Safety Features: dial-fit retention system allows for easy, on-the-fly adjustments * Removable visor protects you from the elements * Dual-stitch straps are soft to the touch for added comfort * Rear exhaust ports enhance air flow * Ventilation: 20 flow vents circulate air and keep you cool * Design: white and gray base with blue accents * CPSC approved * Fits Head Circumference: 20.47" to 22.83" Available in stores for layaway