A black trenchcoat and black skinny jeans worn together are a match made in heaven for men who appreciate casual combos. A nice pair of black suede dress boots is an easy way to add a little kick to the ensemble. When spring is in the air, you'll appreciate how perfect this look is for weird transition weather. As a 30-something gentleman, you probably want to start dressing more like a mature gentleman. That's when looks like this are a foolproof option.