Designed with 840 denier urethane coated nylon air cell for extra strength. Thermo-molded pad is softly textured to comfortably contour to your bodys shape. When fully inflated, the suspension strap promotes air cell movement, thus preventing squeeze. Constructed of 1000D ballistic nylon for incredible durability. Main Features 2 non-releasing trim weight pockets for enhanced stability Removable & adjustable sternum strap Cummerbund extender available Manually operated rear vent valve releases air while you are descending head first Sleek internal mounting points for AKONA ProKit streamline divers profile underwater - Click here for sizing Add ProKit LED for $79.95 or ProKit for $69.95!