Vests

hmm... I guess these days, you can wear a vest anywhere, anytime, because, yipppeee, they are so IN these days. I mean Timberlake's wearing them, and even for girls vests are back in fashion in a sporty or a non-sporty way. And when they're not so much in fashion, then I guess tennis would be the right place for them. You know, those rich people playing tennis usually have a vest on. To tell you the truth, this is not my area of expertise, but I still felt like I had input something in. When do you thinks vests should be worn?