Consider pairing a black and white print crew-neck t-shirt with black chinos to assemble an interesting and current laid-back ensemble. A pair of white low top sneakers looks wonderful here. Combos like this have a refined air that suit men in their thirties really well.
For a surefire casual option, you can't go wrong with this combination of a black and white print crew-neck t-shirt and black chinos. Introduce white low top sneakers to the mix and ta-da: this ensemble is complete. All in all, a perfect demonstration of over-30 style.