I'm not for women wearing pants but I can't make it a doctrine or rule because of the fact that it is old testament, and I don't stand on anything 100% unless it's out of Paul's books. Basically I believe God changes in the way He deals with people but not in His morals or principles. In this verse He wants there to be a distinction between what a woman wears and what a man wears. Pants first started coming out for women to wear during WW1 and especially during WW2 to enable them to take the place of the men in the workplace who were fighting. But the true position and duty of a women is to be as Peter says, "chaste, keepers at home." Also men were the only ones in the Bible who girded their loins to work or fight, which was a picture of pants. Basically I look at it this way, if a woman has to do something she can't do in a skirt she probably shouldn't do it. If that "something" requires her to be immodest in order to complete it, then I say save it for the husband to do.