15" (~ 38 cm) All Black Sponge Rucksack, 15.4" with USB port, a black backpack for everyday use, no matter where you go or what you do. It’s perfect for work, business meetings, lectures or classes, traveling, or simply during your leisure time. Forget about clutter in your backpack; you will find large and small pockets for storing various items: laptop or books, phone, tablet, wallet, notebook, glasses, external battery, shirt, and other belongings. There are spacious side pockets for a water bottle or an umbrella. This backpack model is suitable for both women and men. The USB port allows for practical and convenient USB charging. After all, there are times when your phone runs out of battery at the wrong moment. This backpack is a great solution; you can keep an external battery with a cable inside, all connected, so you can easily charge your phone while on the go. Comfortable for travel and use. Made from breathable quality material. Ergonomic design, well-distributed weight, wide and comfortable shoulder straps. Made from rain and moisture-resistant material, so you don’t have to worry about your computer or important documents getting wet in heavy rain. Perfect for travel instead of carry-on luggage. It features a strap for attaching to a suitcase, making it very convenient for travel.