Pelican Guard Waterproof Dry Box Ultra High Impact structural copolymer, its unbreakable, watertight, dustproof, chemical resistant Its exclusive polymer O-ring and ABS latches seal perfectly and includes an automatic purge valve High-density pluck-n-fit foam allows you to customize your box for all your equipment Provides protection against impact, vibration or shock and is NATO codified and tested to IP-67 Unconditional lifetime warranty with Pelican, comes in multiple sizing options