Stretch shoes overnight by filling each shoe with a bag of water and then placing the shoes in the freezer until the water is frozen. The water expands while freezing, stretching the shoes. This process takes four to eight hours, depending on the size of the shoe.
Shoe stretching supplies such as a wooden shoe stretcher are also effective at stretching shoes in a limited amount of time. If these methods are not effective, a professional shoe repair shop with a stretching machine are able to stretch shoes. This machinery stretches the shoe in very specific locations rather than the entire shoe.