I don't like clomping around the house in my rather heavy New Balance walking shoes, and I didn't feel like changing my house slippers to go outside to grab the mail or take the dog out, so I bought these because I thought they'd be lighter, and they are.  They are also very comfortable and spongy/bouncy (in a good way) so I find I'm actually wearing my slippers less because I don't need to change.  I like them so much I bought a second pair to put away in my closet for future use when these eventually wear out.  I hate finding the perfect thing and then discovering that it has been discontinued (or badly "improved") when I need to replace it.