Capacity: 30*48*15cm, the men's laptop bag can hold up to 14-inch laptops and iPads. The spacious main compartment can hold books, binders, folders, clothes, lunch boxes, and other daily necessities. Multifunctional compartment: The waterproof backpack mainly consists of two large bags and 12 small bags. Inside the large bag, there is a computer protection pad, multiple pockets, and a pen case to organize your belongings and make them easier to find. USB port: This replacement bag makes it easier for you to charge your phone. Connect your own power bank to the internal cable in your bag, and then connect your phone's charging cable to the external USB port to charge your phone (please note that you need to have your own power bank). In addition, you can also listen hands-free using the headphone jack to play your favorite music. Material: Breathable and adjustable shoulder strap to reduce shoulder pressure. The main material of the backpack is Oxford fabric. The bag has a smooth, high-quality zipper and is durable. It is very suitable for office work bags, outdoor travel bags, or school bags for colleges and universities; men and women.