【LARGE CAPACITY】5 compartments orgnizate your school essentials well:1 main compartment with 15,6 inch separate laptop compartment,1 front compartment for A4 folder, books, clothes, pens, etc. Also come with 3 multiple compartments to provide roomy space for necessities.External pockets on both sides are made of elasticized fabric, expands to secure various size water bottles and compact umbrella. 【USB Port Design】With built in USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking. Please noted that this backpack doesn't power itself, USB charging port only offers an easy access to charge. 【Functional】A luggage strap allows travel bag fit on luggage/suitcase, just slide over the luggage upright handle tube for easier carrying. Also as a casual backpack for travel, work backpack for business. A good gift choice for men and women, present for christmas. 【Comfortable】Comfortable airflow back design with soft, ventilated multi-panel padding provides you with maximum back support. Reinforced bottom allows the school backpack to stand on its own. Ideal gift for child,friends,family. 【Occasions】Our school bag is perfect for girls and boys, convenient for students to place electronic devices, such as 15,6 inch laptop etc.It is recommended for school/office/shopping/trip/travelling/daily use.(Age: over 3 years old)