A beige raincoat and a navy long sleeve shirt are great menswear must-haves that will integrate really well within your current off-duty wardrobe. Break up this outfit with a more casual kind of footwear, such as these white canvas low top sneakers. So if you're scouting for a cool winter-to-spring look, look no further. This ensemble demonstrates how to keep slaying in casual dressing as a gent in his 30s.