The chassis is still made from fiberglass reinforced polyamide resin but now features a completely new rear thoracic strut. This strut, called CoreFlex, allows the rear, downward, "fingers" to flex independently of each other with co-molded, soft, rubber set between them and extending below them. Like all Leatt neck braces the Ride 4 was invented by motorcycle racer and trauma surgeon, Doctor Chris Leatt, and built around Leatt Corporation's patented Alternative Load Path Technology, this brace is CE certified as personal protection. Leatt neck braces are used and trusted by more bicycle, ATV, motorcycle and snowmobile riders and racers than any other neck brace. The world's most popular neck braces just got better!New CoreFlex rear thoracic strut has built in fracture point designed to snap off in a severe crash. New color coded rear thoracic strut angle wedges for easier angle adjustment. New rear thoracic strut can be set to -5, 0, 5,10 and 15 for the perfect fit. 3-Way adjustability for great comfort and fit. Engineered collarbone cutout to help keep your helmet and brace away from your most fragile bones. Side mounted paramedical designed hinges that opens easy both left and right. Redesigned optional clear strap included. Removable padding for easy cleaning and maintenance. Replacement parts and accessories available. CE certified as Personal Protective Equipment PPE 89/686/eec. 2013 Model.