Yes in the UK only the English have not got a National Costume, Why?
Many of the Traditional costumes were regional like Gurney mentioned my Wife's Great Grandfather wore the same suit in the exact detail you mentioned. There was of course many classical suits and dresses worn, all on display at the Victoria and Albert Museum. The only traditional suit men wear these days is The Morning Jacket,striped trousers and waistcoat,but only for Weddings, Ascot etc.
Al