The K2 Emphasistruly puts an emphasis on protection, style and function. Ladies love the fact that the K2 Baseline Audio System can connect to your phone for taking in some serenity by listening to your own music and tuning everyone out while you are on the mountain. An in cord mic allows you to stay in touch with the rest of your group if you need to make a phone call to check on your kids while you are out enjoying some powder. Fully Equipped with(Multi-Directional Impact System) the Emphasishas an inner shell that can rotate upon impact to add extra protection. The K2 Dialed Fit System uses a dial located in the back of the helmet to adjust your fit perfectly. An Active Matrix Ventilation System lets you adjust your airflow to prevent overheating on those spring days. If you want a helmet that has all of the bells and whistles that you want on the mountain, the Emphasisis the perfect choice. Features:(Multi-Directional Impact Protection System), Sm(51-55cm) Med (55-59cm)Specifications: Certifications: STM F2040/EN1077:2007 Class B Warranty: One Year Race: No Category: Half Shell Audio: Audio Included Brim/Visor: No Ventilation: Adjustable Adjustability: Full Year Round Capable: No Shell Construction: Hard Shell Product ID: 603430 Shipping Restriction: This item is not available for shipment outside of the United States. Model Number: S2008011012 GTIN: 0886745883807