Shoes Like Pottery

Produced Just Like Pottery. The hallmark of Shoes Like Pottery is the vulcanizing, or ka-ryu, process in Japanese, performed by only a select handful of shoe manufacturers around the world. In the ka-ryu process, each shoe is fired in a kiln which causes the sulfur mixed inside the raw rubber to chemically react, returning the rubber to its natural elasticity and creating a soft, flexible, and durable sole.