CLEARANCE SALE! KOROVO Steel Amour A Multipurpose Antitheft Backpack for Laptop Travel Outdoors 420D waterproof nylon, high density polyester Imported Nylon Lining lining 32" shoulder drop The best multipurpose antitheft backpack with our own special design! Buy one KOROVO Steel Amour A backpack set means you buy 3 bags: anti-theft backpack (black,30L bigger than normal ones), steel wire net inner bag (khaki, 14.17" X 20.48") and laptop security bag (khaki, 11.80" X 15"). The backpack set had through 150 producing procedures and over 60 different tests, for presenting you this special qualified backpack set. 3 bags can match all your needs in different situation/purpose. Water proof Nylon and high density polyester is light, smooth, no color fading, no reel off and solid. It provides you big storage. Soft backpack handle makes you comfortable. Cable entrance can put through steel wire or earphone. Unique zipper is solid, cant be torn by any sharp materials. A built-in lock provides an extra security to the zipper. Spring outer bag can hold your water bottle tight and durable. Backpack backside is super compressive resistant, anti-vibration and super springback, and S shape shoulder straps are strong, and can protect your shoulder, back and spine, and provide you comfortable. Straps were strengthened and can reduce your luggage weight and durable. Steel wire inside shoulders straps, anti cut and solid. Lock at the lower backside ensures you double security. Anti cut laptop security bag is high density foam &cotton cover and the magic stick can prevent your laptop from crash and scrape. Steel wire net inner bag has enough space for your important things, therere steel wires inside cover, the inner bag can be sealed by the steel wire and a special lock. You can fasten your backpack to any unmovable thing you want by the steel wire which is through the cable entrance and one coded lock. How to use the coded lock: 1. The initial code is 555 and 000 on the other side. 2. Open the lock, press the key cylinder (a small hole) by pen point or tiny material. 3. Keep pressing at the same time set your won code. 4. Release the key cylinder when you finish setting code. List Price: US$279.99 (in case Amazon system miss it above the actual price.)