It usually presents itself as red plaid pants in both women's and men's styles ... But up close, their subtle structure ...

The gray, red, and black plaid can only be worn by the Queen and her personal piper, plus a few other members of the royal family (if the Queen gives her permission first!). Will and Kate also ...

No pants? No problem — at least according to New York Fashion Week. Sergio Hudson sent a tailored lady jacket down the runway with little more underneath than a pair of sheer black tights.