Pair a white print crew-neck t-shirt with khaki cargo pants to achieve an incredibly dapper and bold casual ensemble. Why not complete your ensemble with a pair of brown leather low top sneakers for an added touch of refinement? So as you can see here, it's a sharp, not to mention spring-ready, look to have in your transeasonal arsenal. This combo demonstrates how to keep slaying in the casual style department as a 30-year-old gentleman.