This model Incorporates modern design concepts into traditional diving products. Constant refinements and the application of advanced materials technology brought this new version to life. Streamlined wing shape offers more lift on waist which makes diver easier to achieve balance underwater. Low profile valves, modern color collections and light-weight materials make SONIC a new generation of Akuana bcd. Careful attention to details, together with long term production experience, have culminated in designs of rugged functionality.