age: 12-30
Material: canvas
Lining: Polyester
Size: Middle
Capacity: 20-35L
Straps: 80cm
design: Pure color
Color: White，black
Receiving computer Size: 14 inches
Applicable: Youth
Waterproof Level: repellent
Material: Canvas
Closed way: zipper
Popular elements: Letter
Pattern: Text
Color Classification: Light gray Black
Whether the sandwich:
Bags hardness: Soft
Applicable scene: Leisure
Strap styles: double root
Suitable place: school，vacation