Feature:1. The backpack uses high‑frequency voltage technology, seamless processing, and TPU material, which can prevent water from entering the bag.2. The zipper is treated by pressing glue to make the effect more obvious, and it is more convenient and labor‑saving with the ergonomic zipper head.3. The shoulder straps are more in line with the curve of the body, and the thickened sponge lining makes the carrying more comfortable.4. The specially customized shoulder strap buckle guarantees the strength and is easy to disassemble.5. There are four extension straps and D buckles on both sides of the bag body, which can be used to hang items outside or tie them to the outside of the bag body.Specification:Item Type: Waterproof BackpackMaterial: 840DTPU Mesh ClothProduct Color: Blue Product Weight: Approx. 1262gFeatures: High frequency voltage technologyPurpose: When you go outdoor sports or play in the water, you don't have to worry about your clothes and daily necessities getting soaked. Package List:1 xWaterproof Backpack