Kroser 17 inch extra large backpack with laptop sleeve and luggage strap. Style/Model Number:XXK-989. Made of heavy-duty and water repellent polyester. Great for students, travel,business, and daily personal use. Multiple compartments including dedicated sunglass hard shell pocket, and an RFID blocking pocket to help keep belongings safe and organized. Also includes built in USB port that can connect to personal power bank for ease of charging electronics. Backpack unzips to lay flat, so laptop does not need to be removed at security checks, making airport travel a breeze.