The WRSI Trident Whitewater Helmet from the Whitewater Research and Safety Institute provides great protection from the rocks and sun with a lightweight, carbon layup. Look for all the safety components of the classic WRSI Current with a new design. WRSI Trident Features: CKS Stock the ML Only, we can special Order the SM, WRSI stands for Whitewater Research and Safety Institute, an organization founded to advance whitewater safety awareness and technology. A rugged carbon composite shell combines with an EVA foam liners and a polyurethane sub shell to effectively dissipate impacts. Soft EVA foam pads line the sub shell for extra protection and comfort. They attach with hook and loop patches. Includes 9 pads of different thicknesses that you can easily mix and match for a custom fit. The Interconnect Retention System works as an adjustable harness to ensure a safe and secure fit. The WRSI production process is 100% wind powered and strives to be 100% waste free.