Air Life Jacket
This is a life saver product that protects the neck, spinal cord, chest and body from shock. The air jacket inflates quickly by carbon dioxide. When for example you were stuck in the middle of the sea or any body of water, and the jacket started to deflate, you can just blow some air into the jacket to have enough air. You can use a Lifesaver ring in case of flood disaster. It has a light weight design that you can wear for a long period of time.