If you're in search of a casual and at the same time stylish look, go for an orange puffer jacket and navy skinny jeans. To introduce a sense of stylish effortlessness to your outfit, choose a pair of white athletic shoes. And if you're on the hunt for a killer outfit that will take you from winter to spring, you found it. Those who wonder how to wear modern casual looks as you go through your teenage years, you have your answer.