A navy overcoat and a navy cable sweater married together are a match made in heaven. A pair of dark brown leather driving shoes will create a beautiful contrast against the rest of the outfit. As a 30-something Millennial gent, you want to start dressing maturely. If that's the case, inspiration like this proves very useful.
Navy Cable Sweater with Navy Overcoat Outfits In Their 30s
As you can see, looking seriously stylish doesn't take that much effort. Just pair a navy overcoat with a navy cable sweater and be sure you'll look amazing. As a young guy, you want to start dressing more professionally. In this case, combinations like this are a winning option.