The backpack is made of polyester with a cotton lining on the back. There are eight different compartments inside the backpack, which will allow you to easily store your books, phone, wallet or power bank. It also includes a laptop compartment in which you can easily store a laptop up to 15.6". The Mi City Backpack 2 boasts a water resistance rating of 4, which means it can handle light rain. The carrying capacity of the backpack has increased to 25 kg and the volume to 17 liters. The anti-slip straps have been designed in an S-shape, which is more ergonomic for everyday wear.