Large Capacity: The school bag is big enough to hold all the school supplies or daily necessities your child needs. Easily organize your items, travel conveniently, simply and orderly.Material & SizeThe backpack is made of durable, water-resistant Oxford fiber, which is lightweight, wear-resistant and durable. Parents no longer have to worry about their children's textbooks getting wet in the rainUSB Port Design: With an external USB charging port and a built-in charging cable, this laptop backpack with USB charger port provides you with a more convenient way to charge your electronic devices by connecting your own mobile power bank while walking or riding a bicycle. The headphone jack allows for easy use of headphones. A practical backpack for teenagers, boys, girls, friends, mothers and fathers, etc. (power bank not included)Comfortable to Wear: This computer backpack features a padded, breathable mesh back panel design that helps ventilation, air convection and heat dissipation. The comfortable, wide and breathable mesh shoulder straps are equipped with ample sponge pads to help relieve shoulder pressure. The ergonomic design ensures that the travel backpack is comfortable to wear when loaded with all your gear. Reinforced padded top handle for easy carrying.