SKB Cases 3I-18135SNSC iSeries Waterproof Laptop Case with Sun Screen (Black) Custom cut for 17" laptop with sunscreen Ultra high-strength polypropylene copolymer resin UV, solvent, corrosion and fungus resistant (MIL-STD-810F) Complete gasket seal makes these cases absolutely watertight (MIL-STD-C-4150J) Resistant to corrosion and impact damage