Manduka eKO 5mm Yoga Mat - Limited Edition No PVC or harmful plasticizers Made from biodegradable, non-Amazon harvested, natural Tree rubber with non-toxic foaming agents and non-azo dyes 99% latex free; safe to Use for most people with latex sensitivities All post-industrial scrap is thoughtfully collected and utilized in the production of other materials creating a zero waste manufacturing process Most durable natural rubber yoga mat on the market