EVS R4K Koroyde Race Collar
It features a revolutionary Koroyd core with superior impact and absorption and a reinforced nylon upper shell. The chassis has been completely redesigned to be lighter and more aerodynamic. In an impact, the head is pushed down on the race collar. The R4K effectively fills the gap between your helmet and shoulder with Koroyd, which absorbs impact energy better than standard race collar materials.
-Koroyd engineered core for superior impact absorption
-Reinforced nylon upper shell
-Lightweight aerodynamic chassis design
-Rapid lock closure system for easy front entry
-Polyurethane foam base