Proudly offering the most comprehensive selection of Waterhog Floor Mats. Waterhog Mats are the best entrance floor mats on the market today. All Waterhog Floor Mats are constructed of a quick drying polyester/polypropylene surface and rubber backing made from recycled materials that come with beveled “water dam” borders that keep any liquids contained in the mat and from spilling on your floor. The Waterhog Floor Mat's water dam border can hold up to 1.5 gallons per square yard of liquid. The Waterhog Floor Mats are a favorite of office buildings, hotels and medical facilities.