Great Alloy Frame Hard Shell Setting Men's Backpack /

Product information:
Pattern: geometric pattern
Color: red, light gray, blue, black
Function: breathable, waterproof, wear-resistant, anti-theft, anti-seismic, expansion, burden reduction
Material: EVA
Size: 17 inches
Bearing system: physiological curve back plate
Popular elements: sewing thread
Capacity: 20-35L