This smart casual combination of a brown waistcoat and jeans is super easy to pull together in next to no time, helping you look awesome and prepared for anything without spending a ton of time digging through your wardrobe. For something more on the classier end to finish off this getup, complement your outfit with a pair of navy fringe leather loafers. You totally can keep your cool under the crazy heat. The proof is right here As a 30-something Millennial gent, you probably want to start dressing more maturely. In this case, inspiration like this comes in very useful.