STANAG 4280 DEF STAN 81-41. Explorer Waterproof ; Shockproof Case 3317 B. Italian designed waterproof case with softgrip rubber handle. Resistant to chemicals, humidty, dust and harsh temperatures. Copolymer Polypropylene compound Resistant to temperatures (-33°C / +90°C) Jam free purge valve ; latches Lid can be set to slide-off IP67 rating Large Capacity Meets military standards