Absorption- The upper layer of the grill mat is made of 1/8 thick polyester fabric which has strong power of water absorption and oil absorption. Never worry about oil spilling, or other messes on your floor. Easy to Clean-the under grill mat is made of compact felt structure with excellent tear resistance and wear resistance. You just throw it into the washing machine. Non-slip Backing- The grill mat with rubber backing surface is non-slip, skid resistant which keeps the mat in place and prevents it from moving around. It can also prevent grease or any liquid from soaking through to stain or damage the surface below. Premium Material- The outdoor grill mat with compact structure is made of polyester fabric and rubber backing. Heavy duty and waterproof. The under grill mat can prevent grease splashes or food stains. Keep the groud looking new.