HOLOGRAPHIC Limited Edition Series 1We know riders are looking for something clean and classy that will compliment any bike or kit choice. Weve done that with the HOLOGRAPHIC Limited Edition Series 1. Keeping things refined and clean, showcasing the shapes and tech, but with a reflective shimmer to break up the black.Looking for an open-face helmet with a clean, modern look and advanced protection features? The Project.21 meets all your requirements.Named after the number of vents, the Project.21 combines massive airflow with the coverage demanded by increasingly technical bike park, all-mountain and enduro trails. This airflow gives a cooling effect to keep you comfortable whilst concentrating on the trail ahead.Like its full-face sibling, the Project.21 uses Energy Reduction Technology (ERT). This patented 4mm layer of lightweight polymer material dissipates both linear and rotational impact energy. Unlike other systems, ERTresponds instantly even at low-impact levels commonly se