The environmental impact of the clothing industry is well documented. Last year in the UK alone, 235m items of clothing were sent to landfill. The fashion industry produces 20 per cent of global wastewater and 10 per cent of global carbon emissions - more than all international flights and maritime shipping. For anyone who is looking to reduce their carbon footprint, cutting back on new clothes and shopping sprees is an obvious quick-win. But even when we know the facts, it can take us a while to commit to changing our behaviour.