WaterHog Diamond mats are durable, stain-resistant mats with a unique bi-level design that traps dirt and moisture, keeping your floors clean, dry, and safe. The standard WaterHog mat features a classic waffle pattern. Bi-level surface effectively scrapes dirt and moisture from shoes, trapping it beneath shoe level to prevent tracking and water dam border holds moisture keeping it off your floors. WaterHog mats can hold up to 1.5 gallons of water per square yard. Reinforced rubber nubs prevent pile from crushing and extend the performance life of the mat. Solution-dyed PET fabric is resistant to staining, dries quickly and will not fade or rot. Beveled edges provide a safe transition from floor to mat. Certified high-traction by the National Floor Safety Institute (NFSI). SBR rubber backing contains 20% post-consumer recycled rubber from car tires. PET surface is made from 100% post-consumer recycled plastic bottles.