I wanted something for hiking and day trips that was light and easy to pack. This backpack fills all the criteria! It is light, huge, well made, and it folds down into its own small carry bag. I was so impressed by this back pack that I got another one. The price is amazing and the quality is awesome. I will carry mine whenever I travel so I can easily carry it around while checking out whatever area I am in. It is perfect for shopping or overnight as well. I think you could carry enough clothes for a couple of days at least. The material is the rip-stop type and is very strong. It closes like a bag with a cover that clicks into the locks. This bag is a great deal and I recommend it.