Product information: 
 
 Bag size: large
 
 Capacity: 20L or less
 
 The internal structure of the bag: zipper pocket, mobile phone bag, certificate bag
 
 Opening method: zipper
 
 Applicable gender: neutral/male and female
 
 Material: Oxford cloth
 
 Whether with lock: No
 
 With or without rain cover: None
 
 Function: breathable, wear-resistant, lightening
 
 Hardness: soft
 
 pattern: plain
 
 Style: College style
 
 Lining texture: polyester
 
 Strap root number: double root
 
 Popular elements: car suture
 
 Carrying parts: telescopic handle
 
 Outer bag type: inner patch pocket
 
 Bag shapes: square vertical section
 
 With or without tie rod: No
 
 Carrying system: Physiological curve backplane
 
 Color: black, dark blue, gray, dark gray
 Size Information:
 
Length 29cm*Width 13cm*Height 41cm