This is my second pair of the buff popcorn slipper and it took about 4 years to wear out the first pair.  They are warm and soft.  They do wash up nicely in the washer and tolerate the clothes dryer just fine.  Be sure not to wash them with or dry them with anything else that might be lighter in color as the dye in the leather strip around the sides will transfer as it bleeds.  The new pair seems as well made as the old pair also.