This look with a blue denim jacket and a white crew-neck t-shirt isn't a hard one to create and is easy to adapt throughout the day. Amp up the dressiness of this look a bit by wearing a pair of dark brown suede chelsea boots. During the winter months, when comfort is top priority, it can be easy to surrender to a less-than-stylish outfit. However, this outfit proves that you can actually stay cozy and remain equally stylish in the winter months. If you're 30, pay attention to combinations like this to add more seriousness to your style.