Can something old feel like something new? On a mission to mend fashion, model and activist Charli Howard embraces 'thrifting' for vintage, rather than throwaway fast fashion. Charli meets online re-seller, stylist and entrepreneur Bella McFadden, AKA internetgirl. Together they step into the pop-up incarnation of an online reselling app, incongruously located in a department store. Clothes are Bella's life as well as her business and she shares how thrifting let her find her style as a teenager. But why is thrift not quite as thrifty as it used to be? Plus, eco-fashion blogger and stylist Greta Eagan compares leather and pleather, looks to the fabrics of the future and gives us her tips for sustainable dressing. 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.