Holds a lot, but easily gets off balance which is a pain when traveling in a hurry. I'll usually use it for about a week's worth of travel (when I know there isn't any laundry available). Also, it was my fault for purchasing a cloth bag, but I would recommend going hard shell. At one point, I had checked this bag in, but we had to switch planes right before boarding. Our bags were left out in the freezing rain for some amount of time, and when I picked up my bag, all of my clothes/belongings were completely soaked through besides what I had put in waterproof bags.