24 oz.sq/yd solution-dyed polypropylene fabric is highly stain resistant. SBR rubber backing contains 20% recycled rubber content. 3/8" thick bi-level surface effectively removes and stores dirt and moisture beneath shoe level between cleanings. Rubber reinforced face nubs prevent pile from crushing extending performance life of product. Unique 'Water Dam' allows the Waterhog mat to hold up to 1 1/2 gallons of water per square yard, water and dirt stay on the mat. Anti-Static. Available with cleated backing for placement on carpet or smooth backing for hard floor surfaces. Recommended for commercial buildings, hotels, restaurants, healthcare facilities, office buildings and more.