This pairing of a waistcoat and a white polo is a surefire option when you need to look effortlessly neat but have zero time. Add dark brown leather monks to the mix to immediately amp up the wow factor of this outfit. You're guaranteed to always look great even despite the scorching heat if you have this outfit in your front hall closet. This ensemble is hard proof 40-year-old men can very well slay in the fashion department.