For a casually stylish outfit, make a blue denim jacket and black chinos your outfit choice — these two pieces work beautifully together. Finishing with light blue athletic shoes is a guaranteed way to add an air of stylish effortlessness to your look. Seeing as fall is in full swing, this outfit appears a nice option for the time in between seasons. Those who are curious how to pull off modern casual style as you pass the big 3-0, you have your answer.