Leather This is a limited exclusive edition of the Kourtney Leather Clog only available from Walking Comfort. Once this model is sold out, it is gone for good. Removable (and replaceable!) footbeds (also called insoles) constructed of cork, memory foam and latex which creates a perfect fit by forming to the natural contours of your foot. Structured outsole that also promotes perfect posture to reduce stress on muscles and joints. Superior arch support. Slip resistant polyurethane outsole engineered to provide a natural rocker walking motion.