A modern gentleman's classy collection should always include such wardrobe heroes as a dress shirt and a red pea coat. Let your sartorial credentials really shine by finishing your ensemble with a pair of dark brown tassel loafers. When temps are dropping and autumn is setting in, you'll appreciate how perfect this outfit is for transeasonal weather. As a 30-year-old man, you probably want to start dressing with more polish. In this case, inspiration like this comes in very useful.