Sally Fox, a biologist and entomologist, encountered brown cotton, an ancient raw cotton, and developed colored cotton using organic farming methods. She is a pioneer of cotton, who made it possible to spin ancient cotton, which everyone thought was impossible to make into thread, by machine. It all started when an acquaintance's daughter was learning textile dyeing at school, but she didn't wear gloves, and the dyeing solution entered her body through her skin, causing brain damage. As she researched it herself, she found out that the dyeing solution and the insecticide (pesticides) were made by the same company, and since then she has avoided dyed thread and started to grow organic cotton in earnest. She also grows organic cotton by alternating soybeans and cotton, taking advantage of the natural cycle in which ladybugs on soybeans eat pests on cotton. She still raises sheep and grows organic vegetables and other crops, as well as cotton, on her farm near Napa Valley in California.

I believe that weaving her thoughts into reality is the development of undyed products and the traditional, steady manufacturing that places less of a burden on the environment. This may be a method that has been lost as a result of the expansion of the industry, which has led to increased efficiency, uniformity of products, and the use of large amounts of chemicals to stabilize quality in order to avoid consumer complaints. Unconstrained by the common sense of the modern apparel industry, making products that do not use dyes and minimize the use of chemicals is by no means an efficient method, but I would be happy if the next person could weave the story of undyed products, which offer the comfort of the material as it is, the deep natural colors, and the unique individuality of each product.