• Backpack is made of water-resistant microfiber leather and durable ballistic nylon materials
• INVISIBLE ANTI THEFT DESIGN - Unique concealed double zipper design increases the security of your stuffs of value inside. One hidden zip pocket on the back to pack your wallet, money, cheque, passport, cards safely and conveniently.
• FAST USB CHARGING PORT DESIGN - This backpack with USB port outside and the corresponding cable is also provided, which can be connected to a power bank inside the bag.(Power bank not included).
• COLOUR ZIPPER STRAPES - Include blue and orange color zipper straps you can change by yourself to tie on zippers. (Per backpack has zipper straps for free)
• INTELLIGENT INCREASE DESIGN - Once pull up the intelligent enlarged zipper, there will be extra space for stock from 21L to 30L. Best choice for short journey and easy your daily life.
• LARGE CAPACITY - Isolated Rapid-Access laptop compartment suitable for 15.6 inch computer, 30L roomy backpack size: 17inch(H)*11.4inch(L)*8.3inch(W). The massage and breathable design for back side prevents you from hot and sweating. Thickened Shoulder Strap Design - Card Slot Pocket and storage ring. (Best choice for you in travel, business, office)