Pair a navy crew-neck t-shirt with black chinos for a relaxed and trendy ensemble. Introduce white and black leather low top sneakers to the mix and the whole outfit will come together. So as you can see, it's an on-trend, not to mention season-appropriate, combo to have in your seasonal sartorial collection. A great pairing to make you a sharp gentleman in his 30s, rather than just a gentleman in his 30s.