A polo and olive dress pants married together are a savvy match. You could perhaps get a bit experimental in the footwear department and tone down your ensemble by sporting black flip flops. This pairing illustrates that hitting 30 is no reason to stop dressing casually.
This combination of a polo and olive dress pants is a safe bet when you need to look stylish in a flash. To infuse a sense of stylish casualness into this look, add a pair of brown leather sandals to the equation. And if we're talking casualwear for gentlemen in their thirties, this combo looks nice on most gentlemen.