Berta Business Backpack is made of waterproof oxford fabric. Large capacity backpack features a main zipper pocket and two additional pockets to store ipad, books, power bank and other essential things. Comes with a charging port provides easy access to charge (Power bank is not included). Removable shoulder strap design and a handle set on top, which allow it to switch backpack into a suitcase. Ideal for traveling, offices and trade shows.