I think it's very wrong to have the mass murder, every single day, of millions of animals.

We try to make earth-friendly decisions whenever we can, as it's part of our brand DNA.

The main challenge is technology and that's something I really push and work closely with Adidas on. They're real leaders in sports performance; always trying to push that further and further and get the best technology they can. That takes time and has rigorous testing, it's very laborious, but it's also very rewarding. You get to work with fantastic athletes, and that's a fantastic thing that has nothing to do with my day job in ready-to-wear.

As a designer I like to work with fabrics that don't bleed. That's why I avoid all animal skins.

I think deep down I'm spiritual, but there's nothing I practice.

I think the moment that I'm very proud of is building a business without using animals. And, hopefully, changing people's perception of how you can do luxury fashion.

People think I'm strong, but actually I wanted to crawl away. I thought, I'm going to live in the country with my horse and I'll get a nine-to-five; I don't need this.