I'm an Isotoner fan and these pretty slippers did not disappoint. The sole is sturdy and comfortable, as is the inside of the slipper.  I got the periwinkle color and it so lovely with the embroidered flowers on it.
I ordered a size large and I am an 8.5 wide.  They fit perfectly, snug enough to keep the slipper on, but not too snug.
I would definitely recommend.