There should be an adjustable strap such as laces or Velcro which allows for adjustment depending on an individual’s needs. The shoes' heel support / heel cup should be soft and stable, preventing vertical or horizontal heel movement. There should be sufficient room (both width and depth) at the front of the shoe for your toes. During normal walking your foot both spreads out and lengthens up to one centimeter in each direction. Therefore, you should pick a shoe that is longer than your longest toe by about the width of your thumb.