25L Waterproof Backpack Waterproof Bucket Bag With Reflective Strip 1. Material: 500D PVC mesh cloth 2. Finishing process: coating 3. Capacity: 20-25L 4. Tile size: 27 x 15.5 x 39 cm 5. Application: riding, rafting, river upstream, outdoor 6. How to use: Put the item, fold the bag around the hard plastic sheet three times, and buckle the buckle 7. Features: detachable shoulder strap, strong and durable safety buckle; portable small pocket; reflective strip design for safer use at night 8. Matters needing attention: - Before using this product, please do a waterproof test and check if there is any damaged part, especially at and around the seal. - After each use, please check the corners and seals, and avoid strong impact and scratches, do not use it for a long time under high temperature. - After using in water, if you need to take out the items, please wipe the water layer on the surface and the sealing layer to prevent residual moisture from entering the waterproof bag.