Fashion has a dirty secret it likes to keep that way. Nearly two-thirds of all clothes produced are made from fossil fuels and the industry uses 340 million barrels of oil each year to produce fibres such as polyester, nylon, acrylic and spandex.

And with fast fashion, the mainstay of every high street and online store, it is estimated that clothes account for 25 per cent of all the plastics created each year, of which 75 per cent find their way into landfill.