You hear eco fashion, you think crunchy hemp and stiff recycled cottons. What if we told you , , , Victoria Beckham and Roland Mouret were all producing dresses that combine aesthetic beauty with materials that keep Mother Earth happy?

Livia Firth, Eco-Age Creative Director and Founder of the Green Carpet Challenge (GCC), has teamed up with luxury online retailer net-a-porter.com to create an exclusive capsule collection featuring the five aforementioned British designers. Designing two pieces each, every garment is produced to the highest sustainable standards in line with the GCC’s criteria.

‘British fashion has huge power and resonance worldwide and I am thrilled that Livia Firth has seen in our great British designers, the opportunity to amplify her message,’ states Natalie Massenet, Founder and Executive Chairman of net-a-porter.com. Unveiled during London Fashion Week at an event hosted by Massenet, along with Anna Wintour, Livia Firth and the Earl and Countess of Mornington, the collection will be available online from today. Better still, 20% of proceeds will be donated to (RED), which finances Global Fund grants in Africa, in a bid to eliminate mother-to-child transmission of HIV.

The designers’ responses to being involved?

‘We didn't set out to create "green" dresses, but rather to produce something responsibly that explores the whole idea of sustainability,’ says Christopher Bailey ‘The result is two dresses that play with fabric and construction to reflect a sense of fragility but also the strength and positivity of what we hope will be a bright future.’

‘The search for ethically sourced fabrics is something myself and my team have been actively looking at and developing and so seeing the options and possibilities through Livia and the GCC has been inspiring,’ enthuses Victoria Beckham.

says: ‘I like knowing that many of the mills I’ve worked with for years already supply sustainable fabrics and I’ve also been introduced to new and interesting materials in this vein.’

‘The project has been a challenge but worth it. I've learnt so much about the complexities of sustainability,’ says . ‘I hope the dresses prove that ethical fashion is achievable whilst being equally glamorous at the same time.’

‘Designers are always looking a season or two ahead, however this project has enabled me to focus years into the future,’ says Roland Mouret. ‘It’s created a bigger picture and has brought up a bigger issue within the fashion industry that I believe we all need to confront.’

What are you waiting for? Buy yourself a new dress and save the planet in just a few clicks. Easy!