Why do we wear Suits?

It’s a style of dress that’s spread around the world - the suit. It’s survived, largely unchanged, for the three centuries. But, where does it come from, what’s its appeal and what does it say about those who wear it? Mike Williams talks to fashion designer Paul Smith who wears one every day and to the author Jung Chang who had no choice but to follow suit during the Cultural Revolution in China. Produced by Smita Patel (Photo: Two men sit side by side wearing sharp suits. Credit Shutterstock)