Product Material: PVC+Mesh Size: 25 * 17 * 42 cm Capacity: 25L Color: yellow, blue, black Quantity: 1 piece Package content: 1 piece * Waterproof bag 1. Professional Waterproof Technology: Our dry backpack made of 100% waterproof 500D PVC material with rolling top mouth, which makes it extremely robust, light and tear-resistant, protects the contents from dust, sand, dirt and water 2. Soft Straps Design: Ordinary dry bag shoulder straps are too stiff or just uncomfortable to carry, our waterproof backpacks are ergonomic adjustable double shoulder straps and long straps for versatile carrying options 3. Perfect Midsize: 25L is big enough to carry 2 towels, 2 sets of adult clothes, 2 sets of swimwears, 2 pairs of slippers, flashlight, telescope and other personal items. The unique, splash-proof outer pocket with zip securely protects small items 4. Multipurpose: The dry bag can float on the water after rolling, so you can easily track your equipment. Our waterproof backpack is ideal for boating, kayaking, paddling, sailing, canoeing, surfing, sailing, fishing, skiing, camping, the beach, etc. 5. Practical design: The strap of the waterproof bag can be removed, can be used as a shoulder bag, handbag, backpack. When not in use, it can be rolled or folded, saving space and portable. Our waterproof dry bag rucksack is equipped with a removable strap and adapts comfortably to all body types.