As post 2 indicates, the greenest clothing is that manufactured from recycled materials. Clothing manufacturers are discovering new ways to make synthetic fibers from recycled plastics, and now some cotton cloth is also made from recycled post-consumer fiber. Even some shoe soles are now made from recycled rubber. But the vast majority of clothing is produced using practices that are injurious to the environment. Growing cotton, a "natural" fiber, uses lots of fertilizers and pesticides, which are, like synthetic fibers, made from petrochemicals.