This combination of a black double breasted blazer and a long sleeve shirt is a surefire option when you need to look on-trend but have zero time. To give your overall outfit a more refined finish, why not introduce dark brown suede tassel loafers to the equation? This getup has all the elements of your summertime go-to. Wondering how to dress appropriately for your age as you turn 30? This ensemble is the perfect answer.