The yoke style fit of the Helios is lightweight and very cool in hot climates. Inflates in seconds after a firm tug on the ripcord tab, providing 29 lbs of instant flotation. A manual inflatable requires you to be conscious and aware of what you are doing to pull the release, so best suited for quiet water paddling like kayak fishing or recreational touring. Single point indicator window allows you to confirm readiness. Backup oral inflation tube, reflective trim, and tethered whistle for added safety. USCG: Type III, Min buoyancy: 26 lbs. 2 oz. Sizes: Adult Universal (30" - 52")|User Weight: More than 80 lbs.