Silver color, super heavy duty 6 mil. plastic and specially treated to reflect sunlight. Labeled heavy duty polyethylene tarps are laminated on both sides for maximum weather proofing, cross weave fabric is designed for maximum strength and durability. High strength rust resistant grommets on each corner and approximately every 3 feet, lightweight, tear resistant, washable, mildew proof and water proof. TRUE SIZED TARPS! All stated tarp dimensions are given for hemmed tarps.