1. Material: This backpack rain cover storage bag is made of polyester material, ensuring durability and longlasting use. It is designed to withstand outdoor conditions and effectively protect your backpack rain cover or small items. 2. Ultralight and Compact: The ultralight polyester material of this storage bag makes it incredibly lightweight and easy to carry. It can be folded into a small size, allowing convenient storage in your backpack or bag when not in use. 3. Outdoor Organizer: This storage bag is not only ideal for storing backpack rain covers but also for organizing and carrying small items like keys, cards, and phones during camping and hiking trips. It serves as a reliable and functional outdoor companion. 4. Multiple Sizes Available: The storage bag comes in various sizes and styles to accommodate different backpack rain cover dimensions. Please ensure you select the appropriate size based on your rain cover measurements. An incorrect size may hinder proper storage.