This casual combination of a grey gilet and white chinos is a real lifesaver when you need to look great but have zero time. Add a pair of casual boots to the equation to effortlessly kick up the style factor of any ensemble. In winter, when comfort is key, it can be easy to surrender to a less-than-stylish outfit in the name of functionality. However, this outfit is a good illustration that you can actually stay cozy and remain stylish during winter. This combo demonstrates that figuring out how to dress stylishly at 30 is not that hard.