WYC86-5, Department of foam-type products, although life jackets, but not thick, easy to wear action. All categories of personnel for the work of coastal and river use. Buoyancy is greater than 7.5 kilograms. 24 hours after soaking in water, buoyancy loss should be less than 5%. Products certified by the China Classification Society CCS to ensure that the structure and buoyancy. Lifejacket buoyancy material is soft polyethylene foam, outside the orange polyester fabric, bright colors, reflective tape and whistle shoulder.