Large Capacity Men's Multi-function Backpack Shoulder Bag Anti-theft Chest Bag Feature: ADVANCED MATERIALS: Made of high density oxford fabric, waterproof and wear-resistant. Breathing and decompression carrying system, heat dissipation, ventilation, shock absorption. It is more comfortable to carry a heavy load and it takes the strain off your shoulder. Provides your back with plenty of padded comfort. PRACTICAL & SAFE: Main compartment of the anti-theft backpack with lockable zip, practical for locking your valuables. The hidden anti-theft pocket on the back of this business backpack protects your items from thieves. MULTI-STORAGE AREA: Main bag with a large capacity, zip pocket, patch inside pocket, zip pocket at the back, shoulder strap map pocket and side pocket make it easier and safer to store small items. A large capacity can meet your storage needs. MULTIFUNCTIONAL: Stylish, unisex and effective. Can be used as a shoulder bag / shoulder bag / shoulder bag / leisure day pack / shoulder bag / chest bag / travel bag / work or business bag, suitable for office, school, outdoor, business and other occasions. SPECIFICATIONS: Color: black, dark blue, gray, camouflage Material: nylon + polyester Weight: 0.39kg Size: 18x34x7cm PACKAGE: 1 x anti-theft chest pocket for men