They work but...
First things first... After wearing these for a few days, my heels were noticeably soft and smoother. Prior to use they were extremely dry, cracked, and sore. Having said that, my feet sweat in them. A LOT! And my feet never sweat or have odor problems. You are only supposed to wash them by hand, which is a pain since the sweat and odor causes them to need to be cleaned (by hand!) after every wear. They don't smell that great to begin with either.<br /><br />Walking in them takes some getting used to. They're very squishy. Also, unless your shoes are already a size too big, you should only plan to wear them around the house. That creates another problem - after not wearing them for a day, the dryness is back.<br /><br />This sounds like a lot of negatives but I didn't want to give less than 4 stars because when they're on, they work quite well. If they were more convenient to wash and designed to be warn with shoes (without going up a size), I would give 5 stars.
Rating: 4 stars