A crepe shoe sole is slightly thicker than a standard sole. It has a textured, cork-like appearance and is often used on sneakers, walking shoes and other shoes designed for comfort. Over time, the bottom of a crepe sole can split and crack, but it is possible to make these minor repairs before you have to throw the shoes away or take them to a shoe repair shop for a complete sole replacement.
Clean the bottom of the shoe sole with a degreasing cleanser and a soft cloth. Use a soft-bristle brush to get rid of any stuck-on dirt or other objects from the bottom of the sole. Allow the shoe soles to dry overnight.
Spread the sole apart along any cracked areas. You can also repair the area where the sole meets the sides of the shoe.
Sand both sides of the crack lightly with sandpaper to roughen the surface and make it easier to glue in place.
Spread a small line of caulk between the two sides of the crack. Use a popsicle stick to spread the caulk.
Press the two sides of the sole together tightly. Use a large clamp to hold the crack together. Wipe away any excess caulk with a soft cloth. Allow the shoes to dry overnight, or up to 24 hours before wearing.