DETAILS Weighing in at 1500 grams, our new GP Helmet features a technologically advanced polyacrylite shell construction. This helmet comes with 16 intake ports to channel cool air around and over a rider's head SPECIFICATIONS Technoligically advanced polyacrylite shell construction EPP (Expanded PolyPropylene) chin bar Three shell sizes to more accurately fit a variety of head sizes and rider ages 3D contoured cheek pads with emergency release system Plastic visor screws and brass inserts