Watsons biodegrable and recyclable TPE (thermal plastic elastomer)yoga mat is made from sythetic rubber, free from latex, PVC,mercury and lead. Using closed cell technology, moisture cannotpenetrate TPE yoga mat, thus preventing bacteria and other germsfrom building up. This non-slip and lightweight yoga mat providesexcellent support and traction for your yoga practice. Fullyreversible, you get twice the use out of this yoga mat at the priceof one.