The K2 Diversion men's ski helmet uses Hybrid construction, which allows for lighter weight and integrated Dual Active Matrix technology. It offers the ability to adjust airflow to your needs with a simple finger movement. 360 K2Dialed technology ensures a perfect fit to your head morphology, and this model features the Baseline Audio System, a pre-installed audio system in the earcups that lets you listen to music while you ride. This description is an automatic translation. Please contact us if you have any questions. Helmet K2 ---Diversion Gunmetal Black