I didn't want to be thirtysomething and not know what I was going to do. I was quite afraid of that, there were quite a lot of aimless kids around, in that 'other' side of my life, who didn't really know what to do because they always had a bank balance to fall back on and they were quite lost.

It's immoral that people make money out of writing crap, but I try not to obsess about it. I don't want to spend my life being angry.

Whether you eat meat of not, you can be part of this decision to limit the meat industry destroying our planet's resources.

Someone from Manolo Blahnik went into my shop and said: 'These shoes are not vegetarian.' That's the highest compliment, because you just can't tell that they are, and they are. My mum taught me to have a soul.

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.

Depending on the season, between 20 and 30 percent of my collections contain some sort of eco or sustainable element, whether it's a beautiful organic fabric or a natural dye. And obviously I don't use animal skins or fur of any kind.

Being effortless is the coolest thing in the world