Loksak Water / Sand Proof Dry Bags - 4.4 X 7.25 The ultimate super lightweight, ultra durable dry bag. Tested and approved by the US Navy Use for anything your want to keep dry: maps/passports, radios, clothing, food, batteries and gear Ziploc closure. Waterproof and dustproof. Submersible beyond 200 ft Cold rated to -40 degrees Faren. Reusable and recyclable