VASOLA Urban Commuter laptop Tote Backpack is casual and convenient for ultrabook users and bike riders. The inside compartment contains a 15.6" ultrabook pocket with well padded protection. On the back of the bag, the pannier hook can hold on strongly and be removed easily from the pannier to secure your belongings. The main materials are light water-resistant polyester, durable webbing for the shoulder straps and there is also a front light holder with the VASOLA logo embossed. There are two uses for the bag, the first is to hold it as a tote bag, and the second as a backpack. Carrying a VASOLA tote backpack when commuting to work or leisure improves mobility and simplifies your life !