not Meant to walk in!!!  They hold heat for about 20 minutes before needing to be reheated.  The beads inside heat unevenly sometimes, so be careful, Ive burned myself.  They have a very pleasant lavender scent when heated.  If you're just going to sit back and watch tv while you wear them, then they do the job.  But, if you want something that you can move around in, these are not going to work for you.  They are heavy, and not very comfortable, and they make your feet sweat.  They run small, so go up in size.  I wouldnt probably recommend these to most people. They are expensive, in my opinion, for what they are.....  a glorified bean bag.