Manduka eKO 3mm Yoga Mat The "next generation" of ecologically responsible yoga mats; Three years in the making, designed and tested by instructors for high performance Non-slip, durable sea-grass surface texture Natural rubber mat, closed cell construction, non-allergenic and 99.9% latex free; Recyclable and biodegradable No PVC or oil-based eco materials like TPE or PER No phalates or toxic foaming agents found in other rubber eco yoga mats; Scent free (after initial break-in period)