Case Features: Foam interior fits laptops and accessories Injection Molded Case with in-line skate wheels and pull handle Waterproof and dust tight design (MIL-C-4150J) Molded-in hinge Trigger release latch system Ambient pressure equalization valve (MIL-STD-648C) Resistant to UV, solvents, corrosion, fungus (MIL-STD-810F) Resistant to impact damage (MIL-STD-810F)