Hi I've done a search for this question and couldn't find answers. All other things being equal a well tailored charcoal grey sports jacket with, say, lighter grey flannel trousers, tie, shirt, and appropriate shoes will be a smart looking affair. In either a work situation or interview would this usually be considered acceptable as an alternative to a suit? (Let's assume no written requirements are available beyond being of a smart and professional appearance). I understand that a suit is the usual go to clothing solution.