This pairing of a camel duffle coat and navy ripped jeans is super easy to put together and so comfortable to rock a version of all day long as well! White leather low top sneakers look perfect here. In the winter months, when functionality is critical, it can be easy to surrender to a less-than-stylish outfit in the name of practicality. But this outfit is a striking example that you can actually stay toasty and remain equally stylish in the winter months. And if we're talking casual outfit ideas for 30-something Millennial gents, this outfit looks great on most gentlemen.