<http://schema.org/about>
"Some cotton is naturally colored &amp;#8212; it grows that way and does not need to be dyed. \"Color grown\" cotton has its roots in the ancient Americas. Weavers cultivated native white, tan, green, yellow, red, and brown colored cottons for thousands of"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-fashion/color-grown-cotton-fox-fibre.html>