Product information:
 
 Bag size: large
 
 Capacity: 36-55L
 
 The internal structure of the bag: zipper pocket, mobile phone bag, certificate bag, sandwich zipper bag, computer pocket
 
 Opening method: zipper
 
 Material: Nylon
 
 Function: breathable, waterproof, wear-resistant, anti-theft, anti-vibration, lightening
 
 Colour: Black
 
 Size: 17 inches, 15 inches
 
 Package:
 
 Backpack*1