A navy turtleneck and charcoal check chinos are a nice go-to combo to keep in your menswear arsenal. For an on-trend mix, introduce dark brown suede chelsea boots to your getup. As you can see, as a 30-year-old man, you have a vast array of dressing options.
If you don't like putting too much work into your combinations, wear a navy turtleneck with charcoal check chinos. Brown suede chelsea boots will infuse a touch of elegance into an otherwise simple ensemble. Overall, a safe option if we're talking style for 30-year-old gents.