Consider teaming a white dress shirt with a light blue plaid suit for a sharp and polished silhouette. Introduce a more relaxed finish to by rounding off with tan leather brogues. You're sure to always look great even despite the summer heat if you have this look as your go-to formula. As you're going through your late 20s, you want to start dressing more like a grown gentleman. That's when inspiration like this comes in handy.