Sometimes, it's what you don't add to an outfit that makes all the difference. Let's take Rose Byrne's sleek and simple black jumpsuit as an example. The actress chose a ruched onesie teamed with a classic thin belt for her appearance at the NY Cinema Society screening of her film A Single Man. The delicate straps and tapered leg need little adornment, with the beauty of this outfit being all about the flattering fit and standout shoes. Jumpsuits are so easy to get wrong, but Rose has nailed it. I love the slouchy pockets, relaxed yet tailored. How about you?