-Multipurpose Usage: Daily, hiking, traveling, working, sport, laptop backpacks and so on; -Fashion 3D Printing, exclusive Design. Let you stand out in the crowd;-Comfortable Knapsack System + Arcuate Shoulder Strap. It will relieve the pressure on your shoulders;-A lot of pockets to meet your various needs.You can put A4 books, 13"laptop, ipad, glasses, wallet, keys, earphone, charger, cell phone and documents and more in the backpack;How to maintain this backpack?-Wash it with clean water in ordinary temperature.-DO NOT wash it with hot water and alkaline detergent.-Hang to dry and store in ventilated place instead of sun exposure.-Wash Separetely to avoid staining.Fter-Sales Service: If The Product Has Any Quality Problems, Please Contact Us Immediately. We Will Try To Solve It In A Satisfactory Way.