You are probably not a nautical officer. But somewhere along the line you will need to go to a summer cocktail party. You will not want to look too WASPy and dated. You will want to be respectful, respectable, but perhaps with the slyest and subtlest of winks. Well turned out, but not buttoned up. One easy way to do this is via a jacket with a risqué lining. Fuchsia. Lime. Electric blue—the more extreme the better.
My dad told me as I was growing up, “American men think that their clothes should match. They couldn’t be more wrong. Your clothes should clash.” An understated blazer with a bright lining is just another way of saying the same thing.
Not to state the obvious, but don’t draw attention to the lining. People will notice it all by themselves. If someone comments on it just say, “Oh yeah, right—I hadn’t noticed.” In fact, that’s a good rule of thumb: Never ever, ever, talk about your clothes, especially to strangers, except in the most offhand and halfhearted way.