Why not pair a mint shirt jacket with white jeans? Both pieces are totally functional and will look amazing when married together. Let your outfit coordination sensibilities truly shine by rounding off your ensemble with brown leather casual boots. As the weather starts to get warmer, it's time to shed those bulky winter gear and opt for a look that's lighter, like this one here. Those wondering how to rock semi-casual looks as you navigate your 20s, this getup should answer your question.