I'm a fashion editor and I tried on every pair of jeans in M&S so you don't have to. These are the eight styles worth your money - and the ageing pair that won't work for ANY woman

When it comes to denim I am designer all the way. But recently I've been surprised when asking well-dressed friends where they had got theirs - 'Less than 50 quid at M&S' was the whispered reply.