The best sandal ever and not as heavy as regular chacos. They are super adjustable. Can be worn in wet conditions, ideal for hiking and almost any other condition. I don't think I would run in it, but if you really wanted to, you sure could. There are more suitable sandals for this. NOTE: Version 2 Chaco sandals have a toe ring, but they can also be tightened if you wish to wear them without a toe ring. For example, if you play sports and wear them with socks after the game.