I purchased size 7.5-8, as wear a 7 medium, so the length was fine; however, the overall slipper itself is wider than most of the Isotoners I've had previously. The pillow feature is extremely comfortable, which is a big plus. I also noticed, due to the silky nature of the satin trim material, there is an occasional tendency for my heel/foot to slide over the side, even though there is a slight lip around the heel of the slipper.  If you have a narrow foot, look for a different style. Overall, the slippers are comfy, but I will look for a different Isotoner style next time.