This combination of a black trenchcoat and blue check chinos is solid proof that a safe outfit can still be extra sharp. Why not add a pair of blue canvas high top sneakers to the equation for an air of stylish nonchalance? When it's one of those gloomy fall days, what better to brighten it up than a seriously stylish outfit like this one? This pairing shows that in your thirties your outfit options are pretty much limitless.