Anti-Theft Laptop Backpack

Anti-Theft Backpack, Has it's own laptop compartment coming in at 26.5 by 38cm. 
The size of the bag in it's entirety is 31cm by 17cm by 47 cm or 15.6inches, inside is 27L.

Has double zipper to prevent theft possibility; waterproof and light weight 

Laptop compartment size: 26.5*38cm