The M3 breather pump system, made from carbon fiber and 6061 aluminum, with a variable air controller to adjust the amount of air required by the rider, with complete watertightness and lightweight, extendable spiral hoses from 0.60cm to 1.80cm. It manually contracts to its original shape when not in use. The hose ends remain firmly connected to the helmet and pump system ensuring that it will not disconnect even in the most demanding off-road competition such as the Dakar. Micrometric air filter system, washable and with watertight connectors. Specially designed for the Simpson Desert Devil helmet. STAY COOL WITH THE NEW M3 HELMET EXTREME SYSTEM.