Seac Club is a traditional BCD, extremely resistant to abrasion, and entirely manufactured in 1000 Denier High Resistance Nylon. Equipped with 4 stainless steel D-rings, two stitched on the shoulder straps and two stitched underneath the side pockets for hanging all your diving accessories. Seac Club is available in 7 sizes covering all divers, from the youngest to adult. The sternal strap has a two position adjustment. BUOYANCY: XXXS 9.7kg; XXS 9.7kg; XS 10.2kg; S 11.2kg; M 15.3 kg; L 17.3 kg; XL 18.3 kg. WEIGHT: about 4kg, according to size. Seac Club also has 3 exhaust valves