I almost returned these slippers. Glad I read a review that these slippers run small.I have arthritis and thought the heat would help the pain in my feet. My problem with these slippers is that the opening to the slipper-bootie makes it hard to get your foot inside without lots of tugging and pulling. I have a high arch which also makes putting on these slippers difficult not to mention the batteries make the opening tight when inserted in their pouch on the slipper. I got the slippers on and wore them a few times and the opening stretched Slightly. I kept the slippers because they do a good job with putting heat on my feet. The rubber sole on the bottom make it a nice slipper to wear outside. I thought about returning the slippers and getting a larger size but once the slippers were on they were fine but remember get a larger size.Larger size would not necessarily mean larger opening.The opening for me is a design flaw, it needs to be bigger. If the arthritis in my hands gets worse I will be unable to put these slippers on without lots of tugging and pulling.
