Black Coolbell Multi-compartment backpack: this backpack has two main compartments, the front compartment keeps your phones, books, iPad (up to 13.7″), A4 folder and various gadgets. The another compartment fits laptop (up to 17″). Other compartments and the front pocket for carry-on essentialsSturdy, waterproof, comfy: the bag is made of durable polyester and utilize waterproof process. The back and shoulder strap are padded for extra comfort whilst walking. The shoulder straps are very secure and easy to adjust Special reinforcement: these stress points have been reinforced and never worry about your bag falls apart at the stitching even you carry heavy things, such as textbook, laptopMake you much safer: shoulder strap has reflective tap which is visible at night and under car light to avoid some accident Available for any occasion and age: school, work, travel, outdoor activities for boys, girls, women and