Putting together a dark brown shearling jacket and black chinos will be a good illustration of your prowess in men's fashion even on lazy days. For something more on the casual and cool side to complement this outfit, add a pair of brown suede work boots to the equation. You can see here this combo is also a wonderful example of how to style warm clothes in the colder months. A no-brainer outfit proper for guys in their 20s who prefer to dress more elegantly.