For a relaxed outfit with a twist, you can easily go for a white and blue vertical striped long sleeve shirt and black chinos. Wondering how to round off your getup? Finish off with grey suede desert boots to dial up the fashion factor. So if you're looking for an outfit that's on-trend but also entirely season-appropriate, this one fits the task well. A no-brainer ensemble appropriate for 30-year-old gentlemen who like casual dressing.