I wear an 8 in all shoes & flip flops but boots I usually go up to 8. Would definitely highly recommend. I wasnt necessarily looking for a small sized speaker, but I think I ordered a car phone holder of this same brand before and thats still one of my best purchases, so gave this speaker a shot. My wife uses the biggest ones while I use the smaller ones. These do just what they say they do. I experience A LOT of orthopedic pain from a broken inside ankle joint that occurred years ago & resulted in correction surgery w/ a metal plate/screws. I compared the TR3?s with a set of wired over the ear AKG studio headphones. The hook is a little bigger than the door so it would hit the door loudly when it was opened or closed and nothing was on the hook. Since I only wear them around the house, its no biggie to me. I was hoping to use these headphones to listen to music on my runs but the quality for music is junk.