the first pair i bought in ashoe store.  wore them daily for three years.  they were a bit big for me so ihad to wear stocks if iwas going on the stairs,  the slippers are still fine.  i had wanted the red color originally but was out of stock at the store.  so i order ed one size down and they are perfect!  the bottom is a rubber sole and extremely durable.  the rest is wool,  and it does not get hot in the summer.  fit so well that iforget I'm wearing them. and they are machine washable since they do not have the cork sole. there is an arch inside