I am working overseas and needed a slipper to walk to and from our shower area.  I needed a hard-sole slipper that was comfortable.  These Keen slippers haves been everything I wanted and worth every penny.  I sometimes have to walk on very unstable ground and with a hard-sole, it's great.  I would recommend these to anyone who lives in cold climates that may have to walk outsideto to let their dog out or anything else in the early morning.  Great shoe/slipper!