A high quality wintersports helmet for the all mountain female skier, with amazing fit with a dial adjust, quick clearing goggles thanks to an air stack vent improving airflow & an external ventilation adjustment switch. Plush finishing details, an amazing fit, & a feather light weight make the Sheer a great choice for women who want performance & style A new & enhanced Thermostat vent system, the new Stack Vent, & a feather light weight willkeep your temp under control, your goggles clear, & your comfort level at an all time high In Form Fit System makes it easy to dial in a custom fit in seconds In-mould construction fuses a tough polycarbonate outer shell with the helmets impact-absorbing foam liner for extra durability without excess weight Super Cool vents pull cool, fresh air into the helmet while pushing heat & stale air out helping you feel fresh all day Thermostat ventilation control means that you can custom tune airflow instantly with a simple, low profile control button on the outside of the helmet The Stack Vent aligned in the middle of the helmet with the centre vent of your goggle helps to keep them clear & fog-free while maintaining total helmet & goggle integration Compatible with Skullcandy Tune Ups