The Pacsafe GO Carry-On Backpack 34L is made from recycled PET for sustainability and offers a water repellent shell fabric for extra protection. It can be worn 2 different ways and has an external luggage slip to keep your bag balanced on your wheeled bag. It complies with most international airline carry-on size requirements, and has external and internal compression straps for secure and stabilized contents. Plus, an internal attachment point for wallets and keys, a pen loop, and a side pocket for quick access to a reusable water bottle or small umbrella make this bag perfect for any traveler.