Whether around water, while swimming, or st&-up paddling, for training or in competition. Just wear it stoved in the compact pocket to have your focus even more in the moment. Pull the trigger & the yellow Restube buoy inflates within seconds. Restube active provides enough buoyancy (75N) for adults, just lean over it to lift your head out of the water. Wave with the buoy to catch attention or drag it behind you. You also can share the buoyancy with others, which makes it the ideal companion in open water. It is reusable by screwing in a new original 16g CO2 cartridge & very easy to repack.. The RESTUBE is NOT a Coast Guard approved life vest as it does not go over your head or wrap around you. It will not help you if you are passed out. It acts as a flotation swim buoy to rest on & easy to swim with.