Such must-haves as a navy long sleeve t-shirt and grey chinos are the ideal way to inject effortless cool into your current lineup. You could perhaps get a little creative with footwear and polish off this getup by rocking beige suede chelsea boots. When it's one of those dull autumn days, what better to cheer it up than a on-trend look like this one? As you turn 30, you probably want to start dressing more professionally. That's when combos like this are a lifesaver.