Product information:

Material: Hard shell
Bag size: large
Capacity: 20-35L
The internal structure of the bag: zipper pocket, document bag, sandwich zipper bag
Opening method: zipper
Applicable gender: male 
Whether with lock: yes
With or without rain cover: Yes
Function: breathable, waterproof, wear-resistant
Processing methods: soft surface
Hardness: medium to soft
Pattern: plain
Style: Business commuting
Lining texture: polyester
Accessories type: buckle
Strap root number: double root
Popular elements: letters
Carrying parts: soft handle
Outer bag type: bag with lid
Bag shapes: square vertical section
Carrying system: air cushion strap
Color: black, silver white, titanium gold
Waterproof degree: waterproof
Accommodate computer size: 15.7 inches

Packing list:

Backpack*1