I bought this to use for day trips with my two preschoolers to theme parks, playgrounds, and museums. It's been perfect - not too big, not too small, and easily adjustable so that a variety of people can wear it. On a typical day, I'll put a Potette Portable potty, small water bottles, snacks, wallet, and Kindle in the main compartment. In the smaller front zip pocket, I put wipes, hand sanitizer, keys, tissues, and lip balm with room to spare. Since the design is so simple, I anticipate that my kids will continue to use this as they get older. Great buy.