This smart casual pairing of an olive polo and a beige suit is super easy to throw together in next to no time, helping you look dapper and prepared for anything without spending too much time searching through your wardrobe. A cool pair of white canvas low top sneakers is a simple way to inject a dose of stylish nonchalance into your look. As a 30-something Millennial gent, you probably want to start dressing like a grown man. In this case, inspiration like this is very useful.