Safety life jacket also know as personal flotation device in the form of a vest or suit that's is worn by a user to prevent the wearer from drowning in a body of water. This device will keep the the wearer afloat with their head and mouth above the surface of water. They do not have to swim or tread water in order to stay Afloat. The buoyancy of this product is greater than 95N, soaked in water for 24hours after buoyancy loos should be less than 5% inline with GB4304-85 standard. Buoyancy material: polyethylene foam.