AquaPac's Keymaster allows you to take your car keys or small valuables with you. The Keymaster has Class 5 water protection, AquaPac's highest, meaning it is waterproof and submersible to depths greater than 12 feet. All Aquapac cases were redesigned to use polyurethane instead of PVC. Can withstand temperatures from -40 F to 122 F. Pocket-sized so you can slip it in your pocket or under your wetsuit. Polyurethane is 100 recyclable and more environmentally-friendly. The Keymaster has Class 5 water protection, AquaPac's highest, meaning it is waterproof and submersible to depths greater than 12 feet.