Material: 500dpvc sandwich cloth Size: 42x25x17cm Weight: 0.68kg Process: high cycle hot pressing Performance: waterproof and dustproof Capacity: 25L Application: seaside, outdoor cycling, river tracing, swimming and rafting Specifications: Put in the items, fold the bag mouth around the hard plastic sheet three times, and then buckle it! Waterproof zipper ensures no water in rainy Fashion waterproof bag, fearless of wind and rain Designed for outdoor travel High quality waterproof material, effective waterproof 500dpvc mesh cloth material, non crystalline material to prevent water infiltration High cycle pressure wave hot pressing process is adopted The enclosure is tightly sewn to ensure its waterproof performance Three buckles are more secure Strong fastener Using high-quality fasteners, strong bearing capacity, solid and durable The humanized design of the outer storage bag makes it easier to store! Inner storage bag Inner waterproof bag for easy isolation of wet objects. matters needing attention: 1. Before using this product, please conduct waterproof test and check whether there are damaged parts, especially at the seal and around. 2. After each use, please check the corners and seals, avoid strong impact and scratch, and do not use it for a long time under high temperature. 3. After use in water, if you need to take out items, please wipe the water on the surface and sealing layer by layer to avoid residual water from entering the waterproof bag. Package Included: Backpack * 1