What is crombie coat idiom meaning? [closed]

A Crombie Coat is one of range a classic outerwear made by the tailoring company Crombie (founded 1805 according to their website). It's a high quality, high status coat which has been worn by a number of famous people in the past including Winston Churchill, Cary Grant and members of The Beatles.

Crombie are a British tailoring company and have nothing to do with the American retailer Abercrombie and Fitch.

By the way, I found most of this information by googling "Crombie Coat".