Ah, the blazer. You're going to find a wide difference of opinion on it. I personally (and rightly
) view the navy blazer as a traditional classic, others you will find believe that's it's been overdone to the point of cliche. Some will recommend toning down the brass buttons with blue enamel, etc. I agree with Roetzel, that if you don't want brass buttons then perhaps the blazer is not for you. All that said, the blazer is very versatile. You can dress it up to almost
suit level dressiness with gray flannels and lace ups. They're perfect with chinos, loafers (penny, tassel, etc.), button down shirt and tie (or bow tie!
. Of course, you can also take them down to casual jacket level with jeans, or to a college-y function with khakis and polo (or turtleneck) as you mentioned. There's a lot you can do. Take care of it and it will last for decades and only look better. Everyone needs (at least) one. (I assume, by the way, that yours is single breasted. DBs are great, too.)