As the sucessor of the best-selling J1 helmet the Lazer J2 continues to blur the lines between youth and adult design! The J2 provides comfort safety and style in an attractive and low-priced package. The TS+ retention system prevents any hotspots or pressure points by making the size adjustment around the entire circumference of the head: simply turn the dial at the rear of the helmet for a great fit. Key Features: Adjustable dial fitting: The TS+ retention system prevents any hotspots or pressure points by making the size adjustment around the entire circumference of the head. Simply turn the dial at the back of the helmet for a great fit Comfortable: Foam padding and 20 cooling vents In-mould construction: Lightweight outer shell and EPS foam inner make for a quality helmet Quick-release buckle fastening: Easy to put on and take off Weight: 320g Size: S-M 50 - 56cm