Specification: Material: PVC. Waterproof grade: IPX6. size: 5L shoulder: 19*40cm 10L shoulder: 19*55cm 20L backpack: 23*63cm Package Included: 1 * Portable swimming bag Features: Waterproof dry bag, a must have for camping, fishing, festivals, beach, hiking, canoeing, backpacking and more. Keep your items perfectly dry. Can store and keep many things dry, such as clothes, maps, books, cameras, electrical equipment and other items. Protect your items from dust, water, snow, rain and all kinds of damage, enjoy outdoor life to the fullest. Ultralight and super waterproof. Made of lightweight material and durable. Easy to clean and durable. The buckle makes you feel secure and makes it easy to open or close it.