HIGH QUALITY FABRIC:Made of high-grade polyester composite cloth,which feels very smooth to the touch,and the fabric has passed the test of water resistance and scratch resistance.High grade polyester lining.The overall simple and generous,is your daily travel essentials.(Please note that the waterproof and anti-scratch test is a daily careless light use test, except for special circumstances.) ROOMY INNOVATION DEPARTMENT:measures 6.69 "L x 2.36 "W x 11.81 "H. 1 main pocket for books, wallet, tablet and other daily necessities, 1 front zippered pocket for easy access to bus can, 1 insert pocket for cell phone, 1 secondary zippered pocket for books, etc.The sling backpack has adjustable straps that you can tighten or relax to fit your body. USB CHARGE PORT:With built in USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking.Please noted that this backpack doesn't power itself,usb charging port only offers an easy access to charge.(POWER BANK is not included) LIGHTWEIGHT&CONVENIENT:The weight of this sling bag backpack is 0.26kg/0.58b,which is lightweight and slim,making it very suitable for carrying long time.And the wide-open mouth design help you easy to load up and keep tracking of every item,making it very convenient to use it. 100% SUPER SERVICE WITHOUT WORRY:Our backpacks is made of a special high quality material,strong&&durable.If you have any question about our small backpack men,pls contact us by email,we will answer you within 24 hours.THIS ITEM IS NOT INTENDED FOR USE BY CHILDREN 12 AND UNDER. › See more product details