- Durable Material: Crafted from high-quality polyester, this book bag zipper ensures your books stay dry and protected from moisture. Built for longevity, it offers reliable service for all your reading needs. - Ideal Size: Measuring approximately 28 x 21 cm, this book cover accommodates most notebooks, textbooks, paperbacks, and hardcover books. Its foldable design makes it easy to carry and store in your bag. Please measure your items before purchasing to ensure compatibility. - Book Protection: The book bag features a premium, smooth zipper that prevents your books from slipping out. It shields your book covers from dirt, scratches, and wrinkles, giving your cherished books the extra protection they deserve. - Extra Storage: The front pocket of the hardcover cover provides ample space for accessories like an e-reader, pens, and pencils. This practical design is perfect for everyday use, keeping your essentials organized and accessible. Use Scenarios: 1. Ideal for students carrying textbooks and notebooks to class, ensuring they remain in pristine condition throughout the semester. 2. Perfect for book lovers who enjoy reading on the go, providing a convenient way to transport books without damage. 3. Great for professionals who need to carry important documents and reading materials, keeping everything organized in one place.