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 parks, 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 ERT (Energy Reduction Technology) and in the helmet foam, weve specced hidden ConeHead protection technology. Combining these two technologies makes the Project.21 is our safest open-face helmet to date, so you can have even more confidence to tackle technical trails. We have added yet another safety feature as Project.21 also uses our CRV (Crash Release Visor) system to make sure rotational forces are reduced on impact. Thats a lot of protection technologies in one helmet as we wanted it to be the best open-face helmet in our range and to inspire rider confidence when worn out on the trails. The Project.21 comes with two pad kits to customize your fit, with AGION Anti Microbial fabric keeping them fresh. The 7iDP Rear Dial Adjuster allows incremental tuning on the fly and FIDLOCKs magnetic closure makes the buckle a breeze, even with thick winter gloves! And when you get home? Enjoy the Limited Edition padded helmet bag to keep it in the manner such a trick helmet deserves! Project.21 is the culmination of so much testing and development: Tech and features provide comfort and confidence on the bike, and the best protection when you come off it, plus its been designed to look good when worn. As for the HOLOGRAPHIC design: We know riders are looking for something clean and classy that will complement 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. FEATURES: ERT System Conehead Technology 21 Cooling Vents Easy position Visor angle CRV (Crash Release Visor) System 7iDP Rear Dial Adjuster AGION Anti-Microbial Liner TF (Through Flow) Goggle Ventilation Fidlock Magnetic Closure Two pad sets of different thickness Ltd Ed Padded Pro Helmet Bag Meets CE, CPSC, AS Standards Sizes: XS/S, M/L, XL/XXL Weight: 402g +/-10g (M/L) Colours: Black HOLOGRAPHIC TECHNOLOGIES: ERT Softer Is Smarter ERT (Energy Reduction Technology) is a patented 4mm layer of lightweight soft polymer foam that adds a layer of protection against brain injuries in both linear and rotational impacts. Unlike most impact energy management materials, which do not deform and dissipate energy below a certain impact threshold, ERT responds instantly, even at low-impact levels commonly seen in riding. Conehead Technology CONEHEAD is an advanced structure now in its fourth generation of development. Cone layer geometry and dimensions have been refined for optimal energy management and layer material type and density have been rigorously tested to work as a cohesive and dynamic energy mitigating system. Outer Layer: EPS foam with inward-facing cones. Middle Decoupling Layer: Softer Contego reinforced foam with outward facing cone structure. Inner Layer: EPS foam with inward-facing cones. CONEHEAD During Impact: End Result The energies generated from linear, rotational, and angular impact forces are dissipated throughout the helmet structure, thereby reducing the impact effects directly transmitted to the brain. All three layers have compressed dynamically. Each material and density have activated in unison. Both geometry and materials have worked together to manage impact forces. Size Guide:.