Cotton is then mostly chlorine bleached, causing dioxins to further pollute the environment, adding to the increasing numbers of estrogen imitators we have to contend with.

Finally, cotton is frequently coloured with toxic solvent-based dyes and treated with formaldehyde, a chemical that is hazardous to your health, as both a dye fixer and to create wrinkle resistance in the cotton. Dyed cotton garments have been linked to allergies in some people. In addition, the dyeing process consumes scarce clean water and energy reserves.