Burlap

Burlap is a sustainable natural product. It is the second most important natural fibre in the world. The growing process is predominantly manual and requires very little help to grow. Burlap is used in crop rotation with rice and vegetables and provides farmers with a profitable crop year round. The entire plant is used and offers no waste. The leaves are used for food. The husks are used for firewood. The pith is used to make the fiber

It is estimated that there is enough burlap in the world to provide everyone with 2 burlap bags! The burlap industry in Asia, provides direct employment to about 0.26 million workers and supports the livelihood of around 4-million families. From extensive research into key characteristics, burlap performs better than all other material bags and makes it the most ecologically-friendly option in reusable bags.
http://www.luftandco.com/burlap-green-eco-choice/