I own four pairs of Keens, but these sandals are, by far, my favorite.  They've got great arch support, and a hard sole so you don't feel the rocks through your shoes when you're hiking.  But they are also lightweight, easy to slip on and off, and the colors are great.  I wear mine constantly in the summer from hiking to walking the dog.  They're equally comfortable on bare feet and with socks underneath.  I also think they are the most feminine looking of Keen's sandal options.