Opus high fashion diamond design surface removes and stores dirt and moisture beneath shoe level. Strong highly stain resistant solution dyed polypropylene fabric. Rubber reinforced surface pattern prevents crushing and extends performance life of mat. Water Dam design helps trap soil and moisture while reducing trip hazard with cleated back for increased traction. Recommended for hotels, restaurants, hospitals, office buildings and high traffic commercial areas. Easily cleaned by vacuum, hose down or pressure washed, not launderable.