This snuggly little unit from Apparel of the Earth is made from 90% cotton and, well, 10% spandex. It's unclear to me if spandex is organic; I "googled" it, and found a molecular formula and a random post from user name Bob that stated "They are organic in the sense that the molecules of Spandex are mostly composed of carbon."
\:-0
To read more about organic cotton, visit SustainableCotton.org.
