This thing is great. It has a locking mechanism for zipper pulls that has a code you can chose yourself. Lots of room for all you items including lap top. A spot for a power bank and usb port on bag makes this great for electronics. Students and professionals alike can enjoy the benefits of portable power and safe storage and transportation of their favorite personal and work devices. Its durable construction ensures many years of dependability. Walking, hiking, school, work, lunch or play make this perfect for everyday.