Bell's Full-9 helmet packages all its engineers' expertise from motosports into a bike-specific helmet. They also gathered a year's worth of feedback from professional downhill riders to make this their flagship bike helmet. Ready to take on anything you'll find on your mountain or BMX bike, the Full-9 is one of the best full-face helmets money can buy. Bell's engineers built the shell of the Full-9 with unidirectional carbon, Kevlar, and a fiberglass blend. This makes for a highly durable and incredibly lightweight helmet that doesn't weigh you down like other full-face helmets. The Overbrow Ventilation system uses 10 vents to actively channel air over your head from the front to back to keep you cool as you ride. Bell packed the Full-9 with features to keep you safe and to enhance your overall riding experience. The helmet's removable camera mount seamlessly connects your favorite GoPro or Contour camera to the best spot on the helmet. It's a removable, 360-degree breakaway mount that allows your camera to pop off when you fall in any direction--protecting your neck, camera, and the helmet itself. If you are injured, you can use Bell's Eject System, which allows safe removal of the helmet due to a recess in the EPS that allows the cheek pads to quickly slide out. To make your ride more enjoyable, Bell added Soundtrax--built-in speaker pockets and cable routing out the back of the helmet so you can pump tunes without getting tangled up.The helmet weighs around 1050 grams and is certified to CPSC; ASTM BMX, Downhill, and CE standards. Finishing touches include a padded chin strap with a D-ring closure, a fully-adjustable Flying Bridge visor, and integrated roost guard.