The WRSI Trident Helmet combines durable carbon-composite construction with the safety standards WRSI is known for. With its sleek design and minimalist bill, the Trident brings a little personality to the typical boater's helmet. A rugged carbon-composite outer shell combines with an EVA foam liner and a polyurethane sub-shell to effectively dissipate impacts. Adjustable O-Brace Harness conforms to the back of the head to help keep the helmet safely positioned. The Interconnect Retention System securely holds the helmet in place under hydraulic forces. As the force of the water pushes the helmet back, the interconnect system self-adjusts to hold the helmet firmly in place. A plush, breathable liner compresses and conforms for a secure, comfortable fit. Easily remove the liner to dry out, wash or replace. The small visor delivers out-of-the-box sun shade. WRSI stands for Whitewater Research and Safety Institute, an organization founded to advance whitewater safety awareness and technology.