The New Ergo Evolution™ is a lightweight yet extremely comfortable and durable anti-fatigue mat made from high quality polyurethane. The bubble-top surface design offers added comfort and the micro-celled foam center is soft yet supportive. A durable thick outer skin provides protection against wear. Closed cell foam construction ensures that the mat will not absorb liquids and provides insulation from cold floors. The surface is stain and chemical resistant and cleans easily with common detergents and water.