High Impact ABS Material Shell. ISI Certified. Metallic Quick release micrometric buckle. Scratch resistant & UV resistant. Visor in optical polycarbonate, quick release visor mechanism, facilitates smooth.. 1 mouth vent & 2 back exhaust vents.. Full Face helmet is a type of helmet used by motorcycle riders. The primary goal of a motorcycle helmet is motorcycle safety - to protect the rider's head during impact, thus preventing or reducing head injury and saving the rider's life.