The obvious choice for environmentally-conscious studios, spas, and gyms is our economically priced Deluxe Gaia Closed Cell Yoga Mats. Made from a newly developed, innovative environmentally friendly closed-cell Nitrile/Buna N Rubber (NBR) foam, these "green" yoga mats are free from any toxic materials. Their low apparent density reduces weight without performance loss, and the Gaia foam does not contribute to greenhouse emissions. Resistant to most chemicals and petroleum products, our Gaia Yoga Mats won't break down when they become wet. The super soft high resilient foam offers great support and give extra cushion for kneeling poses and jump-backs, while providing a fantastic comfortable feel, slip resistance, and resistence to cold and heat. Best of all, they are easy to clean and have great shock absorption. Mats measure 72" x 24" - 1/4" thick (6mm thick x 57cm wide x 183cm long).