You can make shoe stretch by combining equal parts rubbing alcohol and water, BUT the most important thing is the stretcher itself. You have to soak the leather until thoroughly wet then use a form inside of the wet leather to stretch where needed.
Secondly, how do you stretch liquid shoes?
Regarding this, what is boot stretching spray made of?
Accordingly, what is shoe stretching spray made of? 1/3 rubbing alcohol to 2 parts water. Put into a spray bottle. Spray then wear shoes as they dry.