As the wind starts to whip at everyone's ankles, the fashionable start trading their skirts for more protective pants. As we slide into the new season one leg at a time, we've noticed a parade of two-toned pants on the streets&mdash:blacks, whites, and a smattering of nudes. We've spotted two-timing ladies with contrasting colors on each leg or optical illusion-like opposing shades the front to back or on the sides. Either way, it's a striking way to mix up that old black-and-white look. Eddie from Style Sightings caught a model in contrasting Chanel tights, but if you're watching your wallet (and who isn't these days) you can get your fix with a trip to American Apparel.