*How to make it luminous.
1.This backpack needs to absorb light in the daytime and shine at dark.
2.The longer the backpack absorbs light,The longer the backpack in the dark glow time.
3.You need to carry it in the sun for some time.And then walk to the dark place.
4.Then it will be glow blue.
*If you want to use External USB Charge Function, you have to do as follows:
1.Buy a mobile power
2.Connect your mobile power with the USB interface inside the backpack
3.Connect your phone with the USB interface outside the backpack
*DURABLE - Our Backpack is made with high quality tear and water resistant Oxford material, provides extra strength and long-lasting performance with the lightest weight .
*COMOSITION STRUCTURE - Padded adjustable shoulder straps,Internal organiser section. Padded back panel,Side mesh pocket,Grab handle,Large internal pocket,ONLY Padded adjustable shoulder straps,Padded back pane,Zippered front pocket,Grab handle.
*MULTIPURPOSE - Perfect for daily use, camping, hiking, traveling and school.