The comfortably cushioned eKO yoga mat has a natural rubber grip that catches you if you start to slip. With its eco-friendly construction, this non-Amazon harvested natural tree rubber mat supports both your practice and our planet. Standard Size - 4mm x 60cm x 180cm (5/32 x 26 x 71'') Long Size - 4mm x 60cm x 200cm (5/32 x 26 x 79'') Developed by yoga teachers over 4 years. 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. 99% latex free. All post-industrial scrap is thoughtfully collected and utilized in the production of other materials creating a zero waste manufacturing process. The eKO Mat is a natural yoga mat made from sustainably harvested tree rubber. Unlike other rubber mats available today, the foaming agents used to create the eKO are non-toxic. What this means is that no toxic chemicals have gone into the manufacturing process to soften the rubber.