Daypack Shoulder Under 17inch with USB Charging Port and Lock School Bag

How to make it luminous 1This backpack needs to absorb light in the daytime and shine at dark 2The longer the backpack absorbs lightThe longer the backpack in the dark glow time 3You need to carry it in the sun for some timeAnd then walk to the dark place 4Then it will be luminous If you want to use External USB Charge Function you have to do as follows 1Buy a mobile power 2Connect your mobile power with the USB interface inside the backpack

New upgrade security protection to meet your different needs Initial password 000 Set the password 1 In the state of initial password 000 press and hold the dot below the password lock 2 Enter the password you want and release the dot to complete

Dear customer We have 2 sizes for you choose when you place order please check the size carefully

Product Specification

Product Dimensions Large Size length 11429cm width 6717cm height 18948cm Medium Size length 10226cm width 4712cm height 16943cm Material high quality waterproof oxford Weight 0506kg

Lumious design safety travel at night