She wears size 7 womens shoes. fit is a little wide, even for my wide footed 4 yr old. It will do just fine for my Arm Lift. These were by UCLA Preservation Archives, a nice job, well done. The straps themselves are clearly well made and I expect that they will last for years. Great product, fast, easy install. Ive bought tons of shoes throughout my 1/2 century plus of living. A heads up that if you were planning on purchasing these headphones, to use them for business calls that may require you to mute the phone during a conference call or while driving, you may wish to look elsewhere. The seal is so tight against water that I made that mistake at first. this headset was very uncomfortable, the picture quality was terrible and I got a headache within minutes of use.