A quote from the Elmo website (20/11/06): "No toxic substances are used in the production of this leather."

A dark chocolate-brown leather stool top is sitting on some black leather for comparison.

Leather choices
We stock premium Elmosoft leather in Black and Dark chocolate-brown.  If you have a particular leather that you would prefer, simply post us your leather cut into discs of 450mm (18 inch) diameter (or a piece of hide big enough to cut the required number without compromise).  In this case, please go the product page, select stools and then select the customer supplied covering option.  You can place your customised order there and let us know that you have or will post your leather.

You can visit the Elmo Leather website for their environmental policy and certificates at: http://www.elmoleather.com/template_frame.asp?meny=5&pageid=97