The two men in bright overalls rooting for plastic on a Tunisian beach do so to make a living, but also in the knowledge that they are helping the environment. What they do not know is that the waste will become part of a synthetic plastic fiber used to make blue denim cloth to create a dress for the eco-friendly fashion label Outa, AFP said. The pair are among around 15 "barbeshas", or informal rubbish collectors, taking part in the Kerkennah Plastic Free program, backed by the European Union.