The Giro Nine Helmet is built to the nines. It boasts an in mold construction, which combines a super sturdy polycarbonate shell with an impact absorbing foam liner, offering excellent durability and protection. Its Super CoolTM vents kick out stale air, while pulling in fresh air, and ThermostatTM ventilation control gives you power over airflow through the use of a low profile button. Find your perfect fit using the glove friendly In FormTM fit system, which utilizes a dial for easy adjustment and a gap free fit. Perfect your gear setup with the Giro Nine Helmet.