Schroth SHR Flex Frontal Head and Neck Protection System - Large Dynamic Head and Neck Protection system with many technological advances. Design highlights include patent pending dynamic articulation of the collar, a rate responsive bump stop to manage peak neck tension loads as well as a stabilizing dual tether system and form fitting lower legs to provide optimal fit and reduce interference with the seat. Designed with a low collar to be angle independent of your seating position and the pliable legs form fit to the upper body and chest of the user providing excellent stability without the need for excessive padding systems. Optimized with winglets on the upper collar and SCHROTH's patented SlipStop system on the lower legs to assist in belt retention for off-road and rally sport competitors. Designed and tested for use with standard 3" racing belts as well as FHR specific 2" shoulder belts.