We were actually shopping for something else at SAKS.com when we came across this fine quartet of the chicest black and white colorblock sheaths from Black Halo that we simply had to share. Each one is the perfect answer to What to Wear in the city right now and straight through the transition into fall. From office, to lunch, to shopping, cocktails and beyond, we love the way they keep you looking oh so calm cool and collected. You will be surprised by the prices when you click on the photos below.