I'm a daily commuter and weekend warrior, and the bag lasted 4 months before it fell apart. I used this bag for motorcycling, mountain biking, long boarding, and hauling college books. The built in handle is very uncomfortable for any kind of biking because it hurts my neck. Can't use this pack if you're going to wear thicker clothing for winter and can't take rain. One major flaw is the zipper, it split open on me and now I will replace it with an Oakley bag.