O'Neal 3 Series Hexx HelmetThe O'Neal 3 Series Helmet is constructed using a lightweight poly-injected shell and delivers full venting for improved aerodynamics and overall cooling.Features: Polycarbonate/ABS shell construction Ultra-plush removable/washable padded liner keeps you cool and dry by wicking away sweat Adjustable visor design Intake and exhaust vents for ventilation and cooling Durable multi-colored clear coated graphics Replacement parts available Meets DOT and ECE 22-05 The ECE 22.05 (Economic Commission for Europe) standard is quite a bit younger than the current DOT standard and, in many ways, offers a more comprehensive battery of testing than its American cousin. ECE standards test for safety features that can contribute to avoiding an accident altogether, such as the optical quality of approved face shields and safety factors not directly related to impact, such as shell rigidity. Unlike the DOT, every ECE 22.05 certified helmet model must actually be tested against the standard by an independent lab before it is available for sale with an ECE sticker. safety standards