Purpose of waterproof bag

The purpose of a waterproof bag is to protect the contents inside from water or moisture damage. Waterproof bags are typically made from materials such as PVC, nylon, or other synthetic materials that are designed to keep water out. 

Waterproof bags are commonly used during outdoor activities such as camping, hiking, kayaking, boating, or any water-related sports. They are also useful for protecting electronics, such as smartphones, cameras, or laptops, from water damage. Additionally, they can be used for everyday activities such as commuting, traveling, or going to the beach or pool, where there is a risk of exposure to water.

Overall, the primary purpose of a waterproof bag is to provide a reliable and effective way to keep the contents inside safe and dry in any situation where there is a risk of water exposure.