The new Woodgrain Mat from the Chilewich Collection is superb. It would be the perfect thing to warm up a concrete floor. "Recreating the look of plain-sawn wood by weaving vinyl yarns on industrial looms, the Woodgrain Mat combines the beauty of natural wood with the durability and practicality of a manmade material. The unbound edge provides a clean, simple line. Plynyl is contract-quality and both stain and water resistant. A polyurethane backing, made from 15%-20% recycled contents, provides extra durability for most any application, from residential to retail to hospitality." Woven vinyl; polyurethane backing. Driftwood or Pecan. Small, W 52" L 72", $350 Large, W 70" L 108", $580