But, despite exhaustive searches of major chain stores and the internet, the best Mr Clay has found is a 25in XXL helmet from America. And even that doesn't fit. It means he has to walk a new round with a trolley and it is taking an hour longer than usual. "I have always had a problem with hats," said Mr Clay, from Chatsworth Street. I got fitted at a tailors once and he measured my head and said it was the biggest he'd ever seen.