I am scheduled to give an academic style presentation late in the afternoon at a private club in London the last week of October this year. The audience will be mostly retired flag and general officers from different countries, some government types, and few business people from finance. I am wondering what I should wear to make an impeccable first impression. My three top choices currently in my wardrobe, and that I get the most compliments on are: A double breasted gray POW check suit with a six button single breasted vest; a two button charcoal gray chalk stripe suit with a six button vest with lapels, a two button navy blue pinstripe suit with no vest. Any suggestions would be greatly appreciated especially from those that do business in London or with the MoD. Also suggestions on wearing a tie or bow tie, and how to accessorize would be also be appreciated because I hope this presentation will lead to an interview or job offer. Thanks.