Practicing your sequence on a hard surface? Enjoy the 5 millimeter cushiness of the prAna E.C.O. Yoga Mat. This double-sided, lightweight mat provides excellent grip for those poses that might slip, thanks to its two-sided textured surface. The E.C.O. Yoga Mat is made of 100% Thermoplastic Elastomer (TPE), which is a proudly non-toxic material, UV resistant and PVC, Chlorine, and Latex-free. It's odor resistant through the closed cell construction which prevents germs from seeping into your mat. Savasana just got a lot more comfortable.