From jungles to deserts to oceans, your contents remain dry and protected in our waterproof carrying cases and briefcases. Designed for the most harmful environments, they seal out water, dust and contaminants. Made from very high-strength, impact resistant injection molded plastics, these rugged cases feature a water, dust and air tight gasket lid closure. An automatic pressure relief valve equalizes internal pressure during altitude change and periods of large temperature swings. Most meet IP67 and military specifications. Optional cubed foam, custom foam and padded divider interiors are available.