Ah, that word "formal" is a sticky one, isn't it. I am in complete agreement with those posts above this one. I think what I mean to say, is that my PV is washable, less expensive and so I'm willing to wear it a bit more. That being said, I would still wear it to a more formal setting. It is how it is accesorized that determines where it goes. My other two kilts are more expensive and thus, I'm more inclined to think about when and where I wear them. I'm happy to take the word "formal" out of the equation, entirely.