1.full bag waterproof film coating+TPU material, keep inside dry. inside:210D polyester lining
2.size: 41*30*14CM, 16 inch advertizing outdoor backpack.
2. back panel with secret anti-theft zipper pockets, can put some important things
4. USB charging. and laptop ,Ipad pockets sleever inside.
5.multifunction pockets.
6.360 degree pocket,open and close zipper. large capacity main pocket.
7. can as ads or dairy backpack use,two in one use backpack
8. also offer power bank if necessories,power bank request 10000ah power bank