Can you love the planet, hate waste and keep fit? On a mission to mend fashion, model and activist Charli Howard talks fashion for fitness with Cyrill Gutsch, founder of Parley for the Oceans. Parley have collaborated with Adidas on ‘high performance, low impact’ active wear and trainers made from upcycled ocean plastic. But what about microplastic pollution? Charli talks to a world authority on clothing fibre pollution, ecologist Dr Mark Browne from the University of New South Wales in Sydney, Australia, to learn about the problem of particle shedding and what the future of fabrics might look like. Presenter: Charli Howard Producer: Kirsty McQuire Editor: Rebecca Stratford If you are affected by issues raised in this episode you can get more information at www.bbc.co.uk/actionline.