The top layer of the prAna Verde Yoga Mat is made of FSC (Forest Stewardship Council) blended rubber with organic cotton filling, and the bottom layer is made of 65% FSC blended rubber and 35% recycled rubber.  The yoga mat is 4 mm thick, 61 cm wide and 183 cm long.  Specifications: Top layer: FSC certified blended rubber; organic cotton filling keeps its shape; bottom layer: 65% FSC blended rubber, 35% recycled rubber; a printed prAna logo located in the bottom right corner; wood texture with a grippy non-slip surface;   0.4 x 61 x 183 cm.  Ingredients: 100% FSC rubber.  Made in Vietnam. Colour: Dark grey Pattern: logo Material: rubber, recycled rubber