This is the greenest mat you"ve ever seen! When you are looking for a yoga mat, the natural choice is the Jade mat. The Jade Elite Yoga Mat - 28x80 inch has a smoother texture that provides a little more give and a little less grab - promoting a more flowing and, by requiring more strength and balance to hold pose, a stronger practice. Works well over carpet and durable enough to hold up to the toughest Ashtangi"s yoga practice - great for Pilates and other exercise routines. A firmer, denser and heavier yoga mat is ideal for advanced practice. The Jade Company has revolutionized the yoga mat industry by using renewable resources of natural rubber, and open cell technology allowing the mat to be slip resistant. The unmatched "compression set" resistance and incomparable cushioning combine in making these mats the ideal mat with maximum comfort and performance. They plant a tree for every mat that is sold!