When you buy a ‘large’ jacket from one clothing company and it’s the same as a ‘2XL’ from another, and both of them seem to be about the same as a ‘medium’ from ten years ago, what’s going on? We talk to a top tailor about how much of a muddle clothing sizes are in, what you can do to find your way through it, and what the clothing companies should be doing to solve the problem for you.