For me, I knew the Christy flat was a beautiful shoe, but I had no idea the incredible trend that would follow - I mean, it's the most copied thing ever!

We do high heels, and people know us for that, but the idea of wearing a flat from day to night feels special.

You can wear a beautiful black dress that you've maybe had for years, but if you wear a fun shoe, you can completely change it. Wear something different, something sexy, something strappy, or something with pom poms.

I started doing flats because women would always apologize for wearing them when they met me, as if they had to be in heels when meeting a shoe designer.

I love to turn an idea that is in my head into reality.

A sexy shoe is one that men like.