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