To pull together an off-duty getup with an urban finish, you can easily rely on a navy polka dot crew-neck t-shirt and blue ripped skinny jeans. Bring a sleeker twist to your ensemble by finishing off with white low top sneakers. Undoubtedly, it's easier to work through a warm weather afternoon in a breezy combination like this one. Wondering how to master casual dressing in your thirties? This combo is the perfect answer.