Wrestling often takes place on a mat. To ensure an ample amount of safety for the competitors, the mat is comprised of PVC Rubber Nitrile Foam or Cross-Linked Polyethylene Foam. These materials absorb the shock when these athletes get thrown to the ground. While a mat is often the place where wrestling takes place, sports like MMA which have a great deal of wrestling within them, take place inside octagon-like cages which have the correct padding and foam to protect a competitor from becoming injured.