This smart pairing of a brown waistcoat and dark brown chinos is super easy to throw together without a second thought, helping you look sharp and ready for anything without spending a ton of time combing through your closet. For something more on the casually edgy end to round off your ensemble, introduce a pair of dark brown leather work boots to the equation. And if you're looking for an awesome transition outfit, this just might be it. As you see, after thirty your dressing options are looking good.