The Discord Helmet features Giro's revolutionary Softshell construction that maximizes comfort without hindering safety. Softshell construction utilizes Vinyl Nitrile a flexible yet impact absorbing material to provide form fitting comfort that meets the standards of CE EN1077, the safety certification for most snow helmets. Two layers of VN foam give the liner plenty of cush that manages high and low energy impacts in a wide range of temperatures. Giro's Discord also features an Auto Loc 2 adjustability system for a secure fit, a Thermostat switch that closes the Super Cool vents, and removable ear pads for three season comfort. Giro audio compatibility lets you install Giro audio systems sold separately, and the removable goggle retainer secures your goggles.