This combo of a blue denim jacket and a white long sleeve shirt will be a true reflection of your skills in menswear styling even on lazy days. Want to play it up on the shoe front? Throw in black leather chelsea boots. During the colder months, when practicality is top priority, it can be easy to surrender to a less-than-stylish look. But this look is a vivid example that you totally can stay warm and remain stylish at the same time during the colder months. As you move into your 30s, you probably want to start dressing more maturely. If that's the case, looks like this are a surefire option.