[Product performance] Made of high-density twill composite cloth, strong and wear-resistant and tear-resistant, scientific and reasonable design, to meet your needs travel or school. The side pockets on both sides of the backpack can be used to store water bottles or umbrellas, which is very convenient. The front zipper pocket design makes it easy to access items such as mobile phones, keys and more. Comfortable padded shoulder straps with ergonomic curves keep your shoulders from getting tired.