The New Ergo Evolution is a light weight yet extremely comfortable and durable anti-fatigue mat made from high quality polyurethane. The micro-celled foam center is soft yet supportive, while the 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. An ergonomically designed bubble top surface provides sure footing and maximizes fatigue relief.