Large-Capacity Mens Casual Sports-Style Outdoor Backpack

Product information:
Lining material: Polyester
Pattern: Solid color
Suitable occasion: Casual travel
Colors: 478 Black + USB + music, 478 Black‑white + USB + music, 478 Blue‑gray + USB + music, Gray 80L [expansion + shoe compartment + USB
Applicable gender: Men
Features: Breathable, waterproof, ultralight, expandable, load‑reducing, spine‑protecting
Material: Oxford cloth
Size: 30 inches
Trendy element: Locking buckle
Style: Cross‑border fashion
Capacity: 56–75L