Featuring the DFC system, it meets all divers demands at any depth. The new valve guarantees longevity and advanced performance. A medium-size second stage is made of ultralight techno-polymer. The large purge button is effortless to use while wearing gloves. The VAD system delivers excellent and natural breathing at any depth. The superflex hose is light and flexible for maximum comfort. All current in line Mares Regulators are compatible up to 40% Oxygen (EAN 40) right out of the box.