I say go for it. But then again, I work in education, in a classroom, and I am represented by a fairly good union, and there *technically* is no dress code in my contract... So they really can't tell me no.

It sounds like it would be within the guidelines they've given to you... The dress code does not specify that men must wear pants or that only women can wear skirts (I hate calling a kilt a skirt, but sometimes you have to...).

Worst case scenario, they tell you not to wear it again.