Laptop Backpack with USB Charging Port, School Backpack Bag, Outdoor Travel Daypack High-quality Materials: The backpack is made of high-quality waterproof seamless lotus leaf fabric, which is thick, soft, wear-resistant and waterproof. The leather zipper pulls smoothly, the adjustable shoulder straps are breathable and soft, and the shoulder strap seams are reinforced and not easy to fall off. Large Capacity: The size of the middle school boy's backpack is 48x32x19 cm. It has a large capacity and uses multiple compartments for classified storage. It can easily accommodate daily necessities such as books, pencil cases, mobile phones, wallets, water bottles, umbrellas, etc. The computer compartment can accommodate computers up to 13 inches. The hinged lid with a latch can be easily opened or closed for quick access. Comfortable: The wide padded shoulder straps will not put pressure on your shoulders, but can reduce the burden on your shoulders. The soft back pad supports your back, allowing you to reduce fatigue and make carrying more comfortable. Portable Charging: This boy's backpack comes with a USB charger. When your mobile phone is low on power, if you have a power bank, you can replenish the power in time through the charger. Super Practical School Bag for Boys: The main pocket can hold books, folders, documents, laptops, etc., the three front pockets can hold smaller laptops, iPads, smaller school supplies, etc., the side pockets can hold water bottles or folding umbrellas. You can use it for school, work, camping, travel and other daily purposes.