Product Description:- Backpack structure: The backpack are closed with dual zipper, which is easy to use. There is a compartment in front that can be placed in small items, such as keychains, mobile phones, napkins, etc. There are some small pockets for storing documents, important items, etc. - Recommended age: Our bag is perfect children (Over 5 years old) Multifunctional for school. Suitable for primary school junior high school students. Material: The surface of the schoolbag is made of waterproof polyester, which is sturdy and durable. The use cycle is long, effective waterproof.Warm design: The side mesh pockets can be equipped with water cups, umbrellas.-Adjustable shoulder straps:The shoulder straps of the schoolbag can be adjusted. You can adjust the comfortable length according to the height of the children and reduce the pressure of the shoulders without much weight.-Kid¡¯s Backpack Age:Children's schoolbag backpack recommended age rating: (5-14 years old).-Requested Age Grading: Over 5 Years. -Appropriate Age Grading: Over 5 Years.-Tested Age Grading: Over 5 Years.