SKB Cases 3i-1711-6GP6 SKB - iSeries Waterproof GoPro Camera Case, Dual Layer (Black) Custom foam interior to hold six GoPro cameras up to the Hero 4 Ultra high-strength polypropylene copolymer resin with molded-in hinges UV, solvent, corrosion and fungus resistant (MIL-STD-810F) Complete gasket seal makes these cases absolutely watertight (MIL-STD-C-4150J) Automatic ambient pressure equalization value (MIL-STD-648C & IP67)