I wear slippers constantly when at home and must buy a new pair every 2/3 months. I recieved mine today and I am made up. They seem to be a lovely quality and not flimsy. I was worries the hard soles would make them weighty but they are still light and feel like slippers not shoes.
They will most definitely be chucked in the wash at some point soon and that will be the test along with how the memory foam holds up.