This Is A Large-Capacity Backpack, The Style Is Fashionable And Versatile, The Material Is Made Of Oxford Cloth Fabric, Wear-Resistant, Scratch-Resistant And Water-Repellent, The Height Of The Schoolbag Is 43cm, The Width Is 31cm, The Thickness Is 18cm, The Maximum Can Hold 53. 3cm Laptops, The Back Is Large-Capacity Anti-Theft Pocket, The Widened Shoulder Straps, Does Not Strangle The Shoulders, The Back Is More Comfortable, The Large Capacity Can Hold All Kinds Of Textbooks, Exercise Books, StationeryAnd And Daily Necessities. It Can Also Be Used When Traveling