Perhaps the best way is to determine where your Angels were made in order to choose between the two Angel sole replacements: the Original Angel Sole and the 7th Heaven Sole.
The Original Angel Sole is made from 100% Hevea Latex, which is a natural rubber harvested from the Hevea Tree. Aside from being 100% biodegradable leaving no production waste for the environment, they are soft and durable. Compared to The 7th Heaven Sole, they are a lot lighter, bouncier, but don’t last quite as long. These were used in Angels that were produced in Mexico, and are currently used in Angels made in Vietnam and Poland.
From 1990 to 1998, the first Angel shoes were fabricated in Mexico using The Original Angel Soles, made of 100% Hevea Tree latex.
From 1998 to 2005, the next generation of Angel Soles were fabricated in Poland using The 7th Heaven Sole, made of 50% Hevea Tree latex and 50% vulcanized rubber.
From 2006 to 2012, we moved the Angel production to Vietnam and China, going back to The Original Angel Sole comprised of 100% Hevea Tree latex. As of Fall 2012, The Classic Angels, Arch Angels, and Gateway Angels are fabricated with The Original Angel sole.
In 2013, we have added the production of The 7th Heaven Angels, made in Poland, and using The 7th Heaven Sole, made of 50% Hevea Tree latex and 50% vulcanized rubber.
Confused yet?