DBF-II-type insulation is in accordance with the SOLAS Convention, survival suit, IMO specifications designed and manufactured for marine and offshore workers on platforms in the cold waters, harsh environment for life-saving, thermal insulation of the special clothing. It consists of waterproof fabric and insulation buoyancy materials, will be underwear, gloves, boots fused oil, cover the whole body except face, with a buoyant, watertight and natural insulation function, with life jackets and life-saving lamps whistle, do not take the jacket, is the shipping, offshore platforms and the necessary personal life-saving equipment. The clothing has a large, two specifications, respectively for the height of 1.75-1.9 m and 1.75 m below the officers. Clothing with a safety harness. 
 The main performance 
 1, the water properties of the wearer floating in the water 1 hour, clothes, into the water within less than 200g. 
 2, the buoyant performance of the wearer to within 5 seconds turn to face-up position, 120 mm snout above the surface buoyancy loss is less than 5%. 
 3, the heat insulation properties of clothing wearer in 0 ~ 20 ℃ Static water soaked 6 hours, decreased body temperature does not exceed 2 ℃, hands, feet, skin, soak in water temperature of not less than 24 hours after 10 ℃.