Some of the insoles are cork, and some are poly. All shoes are sold with the insoles inside the shoe. Our insole chart lists the insole thickness at its thickest point -- the heel. Insole Replacement Guide
All of the insoles are interchangeable and can be easily trimmed with scissors if necessary. The Insole Replacement Guide shows the insole that is in the most recent production of that specific style. For more information on each insole thickness, go to the product page for each insole, click SPECS, and read more.