Waterproof, crush-proof and dust-proof – Easy open double throw latches – Open cell core with solid wall design – strong, lightweight – Stainless steel hardware and padlock protectors – Automatic pressure equalization valve – Pelican cases are kept watertight through the use of a tongue and groove fit and a polymer o-ring. – Pelican cases come standard with an Automatic Pressure Equalization Valve which releases built up air pressure while keeping water out. – Pelicans Pick NPluck foam lets you