The Seattle Sports DryDoc Waterproof Cases are ideal for protecting fishing licenses and IDs in our smallest size, to protecting Passports and other documents in the Passport/Utility size. These cases are perfect for any situation, and are also great for building Mini Survival Kits in! Built with an eco-friendly PVC-Free film that's super puncture proof, these cases are as tough as they are useful. A positive-snap Ziploc®-type closure makes them extremely easy to use. With their simplicity, they are also an inexpensive solution offering great protection to your valuable documents.