EVA RAIN BOOTS 

Is there a company that makes these boots with a narrower opening? I like to wear them in the winter and I learnt (after having left my crocks in front of a space heater to dry off) that you can mold them with a little heat. No more than a heat gun from a good distance shot right into the opening of the Shaft. 18 inches is good. It makes them fit really well once you put your feet in and start walking around.