In order for a shoe to stay on your foot, the topline or instep part of the shoe needs to cover your arch. If it doesn’t, the only way you will be able to keep the shoe on will be to grip with your toes, which will create problems including blisters and hammetoes. In order to avoid this, make sure the topline is high. The following pictures show toplines which are too low.
Dr. Jenny Sanders Shoe Blog 