The KASK hard hat fits like a bicycle helmet and will not fall off once it is secured. Therefore, in the case of a fall the worker’s head is still protected and it also prevents that hard hat from falling and injuring someone else. Lightweight external shell with exponential better performance. Excels in impact absorption, specially at lower temperatures. Resists yellowing and degradation. Helmet internal shell designed with a low-density inner core optimized for protection from top impacts. A size adjustment system which integrates three components for all-day comfort. A new, double diameter dial allows for easier size adjustments. Ergonomic side wings ensure a fast and secure fit against the back on the head. Chinstrap designed with an updated lateral adjustment divider with additional adjustment point for a more precise fit. ANSI Z89.1 Type I, Type II - Class E All around protection against impact and penetration including front, rear, and sides.