BESTEK Eco-Friendly Double-Sided Non-Slip Yoga Exercise Mat 1/4" Thickness72 Long TPE + TC Polyester Cotton 100% Latex & PVC Free Dual-Color (Green & Black) Eco-friendly mat: Made of TPE + TC (polyester cotton), no odor, non-toxic, 100% latex & PVC free, and recoverable. Double-sided non-slip: the front honeycomb texture, the back fish-scale texture, fully filled with small anti-slip granules. Better than PVC mat. Non-absorbent surface keeps you from slipping while sweating. High density and high elasticity make it restore after the outer press disappears in a second. 1/4 thickness mat is enough for comforting your knees; the size of 72x 24 fits for people in different shapes and height. Lightweight, portable carrying bag and strap, extensive use indoor and outdoor.