Waterproof 20L Backpack with Rain Cover & 15.6 K&F

Main material:
Fabric: Nylon 40%
Polyester Fibre 60%
Lining: Polyester Fibre 100%
Capacity: 20L
Computer Compartment: 15.6 Inches
Waterproof: Yes
With Rain Cover: Yes
Size (cm): 30*20*45
Weight (kg): 1.7