I wanted the most eco friendly bags to use for shopping, as the green supermarket bags are still a type of plastic. Cotton, and even organic cotton, still use a lot of resources ( water and chemcials for nonorganic) to produce. Jute however requires much less water, grows quickly and requires minimal to no fertiliser. Although I was aware of the carbon miles the bags would travel, I chose to buy some made by a Bangladeshi Womens Co-op and the bags are fantastic. Best still, I can home compost them when they are no longer useable:)