Specification：
Inner layer: 70D x 200D water-proof Nylon coated with Neoprene material.
(1). in front chest, with an open nylon zipper and two pockets with zippers 。
(2). A nylon strap on waist for fix use。
(3). An oral valve is equiped on left chest。
Capsule ：
Human floating capability: above 90Kgs.
