1. Use 0.52MM thick 500D PVC mesh fabric as the main fabric, which is abrasion-resistant, scratch-resistant, aging-resistant, and has excellent waterproof performance, ensuring that the waterproof bag can adapt to various complex and harsh environments. 2. The bag body is high-frequency heat-sealed and glued, and the bag body is waterproof. 3. The backpack shoulder strap and backpack cover a large area of honeycomb 3D breathable mesh, which ensures better air circulation and human comfort, and through pearl cotton, it reduces the pressure and impact of the backpack. 4. This product has a waterproof grade of IPX6, is splash-proof and splash-proof, and the bag cannot be completely immersed in water. After the package body is completely immersed in water, the mouth of the bag will slowly seep into it. It is recommended that electronic devices such as mobile phones be protected by a special sealed waterproof cover before putting them in the bucket. Clothing and other items should also be sealed in a sealed bag (such as a transparent PE ziplock bag) before putting it in a waterproof bag. This allows you to enjoy yourself without worrying about getting things wet. 5. After the package body is folded, it can be filled with a lot of air and can float on the water surface. It can be used as a temporary float and can keep a small amount of air leakage for about 30 minutes. 6. Material: 0.52MM 500D PVC mesh cloth 7. Waterproof rating: IPX6 8. Production process: high frequency heat sealing 9. Scope of application: outdoor wading sports such as river tracing, rafting, mountaineering and swimming 10. Size: 32 x 22 x 70 CM 11. Weight: 1.2KG