What is "organic cotton"?
Organic cotton is grown using methods and materials that have a low impact on the environment. Organic production systems replenish and maintain soil fertility, reduce the use of toxic and persistent pesticides and fertilizers, and build biologically diverse agriculture. Third-party certification organizations verify that organic producers use only methods and materials allowed in organic production

For more knowledge about organic cotton, please refer to
http://www.aboutorganiccotton.org/index.html