Large-capacity Outdoor Mountaineering Bag Men

Product information:
Bag size: large
Capacity: Below 20L
Applicable gender: male
pattern: plain
Scene: Outdoor
Color: 55 liters red (55-65 liters can be expanded), 55 liters blue (55-65 liters can be expanded), 55 liters orange (55-65 liters can be expanded)
Is there back cushion cotton: Yes
Waterproof degree: water repellent
Accommodate computer size: 16 inches

Packing list:
Backpack*1