In the late 1980s, F1 teams began licensing various clothing outfits to sell "works replicas" of genuine team stuff, buit racing suits as far as I know were never part of these deal. The suits were always made by whichever company that made the racing suits in the first place. The Italian companies, especially Sparco, did produce a large amount of replicas for various uses. So beware if you are being offered a suit, check provenance and make sure that there is no BS story with it...