The Original Eco Yoga Mat is simply one of the best and most earth-conscious yoga mats available today. The Original Eco Mat is composed exclusively of all-natural rubber* and jute fiber. There are no chemical additives used. It is excellent for any consistent practice of Yoga. Its rubber underside grips the floor while the jute fabric/rubber mix on top offers superb traction even in a heavy sweat. It is a highly durable, tactile, and pleasantly natural surface to practice on -- and might remind you of walking barefoot on the earth.