A navy and white horizontal striped long sleeve t-shirt and grey chinos will convey this laid-back and cool vibe. If you're puzzled as to how to finish, a pair of white canvas low top sneakers is a wonderful idea. So so as you can see, it's a dapper, not to mention season-appropriate, look to have in your transitional arsenal. This pairing demonstrates how to keep killing it in the casual style department as a 30-something gent.