The process includes: Rubber Outsole Pressing: The shoe molds are used to create two parts — the insole and outsole. ... Add raw rubber that will form the forefront and place the mold back into the heat to form the insole. Fusing: Now it's time to fuse the insole and outsole to form a finish rubber sole product.

What are outsoles made out of?

Typically made of rubber, the outsole is the bottom of the shoe. The outsole provides traction and contributes to how soft or firm the shoe "rides" as well as its torsional rigidity and flexibility. Carbon Rubber – This durable rubber compound makes up the majority of running shoe outsoles.

What are icy soles made of?

Most of these gum soles are actually made from polybutadiene, which is a product that comes out of processing oil.