This combination of a crew-neck t-shirt and chinos is on the off-duty side yet it's also stylish and extra stylish. Send an otherwise mostly dressed-up outfit in a more relaxed direction by wearing a pair of grey suede high top sneakers. When it's one of those gloomy fall days, sometimes only a kick-ass outfit like this one can get you to face the outside world. This combination illustrates that getting to your 30s is no reason to shed casual style altogether.