[MULTI STORAGE AREA]: large capacity main bag, zipper pocket, inner patch pocket, back zip pocket, shoulder strap card pocket, side pocket, make it easier and safer to store small items. Large capacity can meet your storing need. [PRACTICAL & SAFE]: Main compartment of the anti theft backpack with lockable zipper design,convenient for locking your valuables. Hidden anti-theft pocket on the back of this business backpack, protects your items from thieves. The surface of the package is printed with reflective design, and the night warning is safer. [ADVANCED MATERIALS]: Made of high-density oxford fabric, waterproof and wear-resistant. Breathable and decompression carrying system, heat dissipation, ventilation, shock absorption. It's more comfortable carrying a heavy load, relieves the stress of your shoulder. Offering your back plenty of cushioned comfort. [MULTI-FUNCTIONAL] : Stylish, Unisex and Effective. Can be used messenger bag / shoulder bag / cross body backpack / casual day pack / sling bag / chest bag / travel bag / working or business bag, suitable for office, school, outdoor, business and other occasions. [ 100% QUALITY SERVICE]: If you are not satisfied with the quality of the product, we will give you a full refund. If you have any questions, please do not hesitate to contact us as soon as possible. Lifetime return guarantee.Customer satisfaction is our main goal