This modern casual combo of a puffer jacket and light blue ripped skinny jeans is very easy to pull together in seconds time, helping you look awesome and prepared for anything without spending too much time going through your wardrobe. To inject a more laid-back finish into this getup, complement your outfit with a pair of athletic shoes. So when summer is over and autumn is here, this look has a good chance of becoming your uniform. Those who wonder how to wear modern casual dressing as you work your way through your 20s, you have your answer.