1. This first step is important to do well, because any left over old sole material will make glueing on new sole more difficult. Normally the glue that shoe companies use on footwear is very strong so take your time removing it. Slowly work around the edges of the sole to pry and cut it free of your Birkenstock.
We suggest using an old kitchen knife or something that is strong enough to dive between the sole and Birkenstock and pry apart the bond. Once you remove the sole, sand off any remnant pieces of old rubber stuck on the Birkenstock. You will want a clean surface to glue your new sole to.
Keep your old sole in tact to trace in the next step!