PERFECT SIZE: OUTSIDE :11 x 9 inch (28.5 x 23 cm); INSIDE: 10.5 x 8 inch (27x 20 cm) The compact size of this Book Sleeve makes it easy to slip into a bag or backpack, making it convenient and protect book from damage while carrying it around in a bag or backpack SIDE POCKET: Keeping small items organized in this extra space, storing writing utensils, chargers for electronics, kindle, office supplies and organizing personal items such as medication or contact lenses GOOD MATERIALS: This Book Sleeve is made with durable, high-quality materials that are built to last, ensuring that you can use it for years to come. The adorable colorful design of this cute book pouch is sure to catch the eye, and keep a book organized and easy to find in a crowded bag or shelf ZIPPERED CLOSURE: It has a zipper closure to prevent a book from falling out of a bag or backpack while on the go or getting scratched or scuffed while traveling. To keep your book clean and free of dirt, dust, and other contaminants and safe from moisture or water damage, such as in a rainy environment or near a spill The convenient size of this Book Sleeve makes it easy to take with you wherever you go, whether you're heading to class or work. This soft bag is a must-have for any professional looking to keep their book organized and protected in a cute, stylish way