ozuko New Style Business Backpack USB Anti-Theft Man Laptop Pack Student Outdoor Sports Travel Backpack

Features:
Dual zipper design, high hardness, anti-rust and fading.
20-35L large capacity main pocket, multilayer storage space.
Superior oxford cloth, waterproof, wear-resistant, breathable.
Back invisible pocket and password lock dual anti-theft design.
External USB port, reduce the charge limit of space, free hands.
Included raincover, multiple protection, waterproof dampproof.
S-shape widen shoulder straps, adjustable length and release pressure.
Three-dimensional breathable pressure relief load, high elasticity.