Nylon construction. Adjustable waist belt and anodized belt loop hook. Holds wallets, keys, cameras and personal items. For beach, pool, water parks, hiking and snorkeling. Weighs 0.24 lbs.. The Dry Pak Nylon Belt Pack is a convenient storage pack made up of blue waterproof nylon. It holds your wallet, keys, camera or any other personal items, while you enjoy in water parks, beaches, pools, etc. The waterproof backing of the nylon pack ensures that your valuables remain safe and dry. Just tie this 6-by-5-inch pack around the waist with its adjustable belt and have fun in water without any worries.