The Marlin Australia Adults Manual Inflatable Waistbelt Level 100 PFD is designed to be worn around the waist allowing natural movement while boating, fishing or supping. Marlin's waist belt inflatable PFD is classified as a PFD while wearing it around the waist, and when pulled out of the waist belt and worn over the head. Featuring a 24g gas cylinder with back up manual inflation, this PFD is suitable for general use on the water where the shore is in view. One size fits most, with a weight above 40kg.