LONDON – Luxury retailer Net-A-Porter and Livia Firth's Green Carpet Challenge (GCC) have launched a new collection of clothing made by British designers to the “highest sustainable standards”, a fifth of the proceeds of which will be donated to AIDS awareness organisation, RED. Christopher Bailey, Victoria Beckham, Christopher Kane, Erdem, Roland Mouret have all designed two pieces – each in line with GCC’s “ethical benchmarking.”