1.The Inflatable Life Jackets are made of TPU and Oxford cloth. 2.The humanized design is fashionable and portable, the belt is free size. 3.Superior floatage is more than 150N keeps you safe in water. 4.Reflective band and whistle is good for been found in the darkness.5.All of our life jackets are CCS approve, the quality is guaranteed.6.The Inflatable Life Jackets have 33gCO2 cylinders7.All life Jackets can optional, for example: style, color ,manual ,automatic and so on