I was looking for a cozy, comfortable house slipper & decided to try this pair of Keen's. At first I wasn't sure that I'd like them due to the slight edge that encircles the back heel of the shoe. I thought it would annoy me but after a few times wearing them, I didn't notice the edge at all. Our downstairs is laminate flooring on concrete & is therefore very hard on the feet. Cold too in the winter. These slippers are exactly what I needed/wanted & very comfortable. I plan to purchase another pair for outdoor slippers. The only downside is that I probably won't be able to wear them during the hot summer days. If I can tho, I will!