Restube basic for more safety and freedom in the water! Restube is an inflatable buoy with a screwed-in CO2 cartridge. Folded up and packed in a small bag. The bag can easily be worn around the waist. If you pull on the trigger, the buoy inflates within seconds. Since the Restube is connected to the bag, and thus to the body, it can be pulled after being released. Now you have time. After use, simply empty the restube and dry the buoy, replace the cartridge and re-pack as described on the buoy.