Green Label makes its sustainable threads using 100% organic cotton and low-impact dyes in a sweatshop-free environment in the U.S.
If you want to know some facts behind the buzz about organic cotton, its website has useful information about the difference between conventional and organic methods here.
For instance, farmers have only been using pesticides and insecticides since World War II--before that, what we now call organic farming was just called, well, farming.
25% of the world's use of insecticides is in agriculture; nine of the most common chemicals used are highly toxic and likely carcinogenic. That's a problem beyond soil, air, and water and one that humans are dealing with as even though we may not eat cotton, the chemicals sprayed on the crop can drift away to other fields affecting both farmworkers and produce-eaters. On top of that, pesticide-laden cottonseed oil is used in many a packaged food.
So, by only buying organic cotton and supporting companies like Green Label, you can support healthy crops, soil, air, water, and, most importantly, people.