Cotton,Oxford,Oxford Cloth,PolyesterImportedExcellent protective material:The exterior is made of water-resistant polyester oxford fiber, and the interior is polyester cotton. 360-degree protection,protect your tablet or laptop from dust, dirt, scratches and impactsFunctional tote bag:Double zipper closure at the top.This design prevents your laptop from accidentally falling. The laptop pocket on the back has an invisible zipper pocket for storing valuablesLightweight and easy to carry:Reinforced portable design, strong bearing capacity. Widen the shoulder straps to reduce shoulder pressure. It can be used as a shoulder bag or handbag as needed. The stylish flat straight-through belt slides firmly on the handle of any suitcase for easy hands-free transportationWell organized:You can store enough accessories, such as your mobile phone, documents, magazines, 13.3-inch laptop, power charger, mouse, pens and other home school or office suppliesIdeal gift:Laptop bag is very unique, suitable for any holiday, such as Teacher's Day, Mother's Day, Valentine's Day, Thanksgiving Day, business school or travel