This casual pairing of a white and navy windbreaker and black sweatpants is extremely easy to put together in seconds time, helping you look amazing and prepared for anything without spending too much time digging through your closet. In the footwear department, go for something on the dressier end of the spectrum and round off your outfit with blue suede derby shoes. We're loving that this getup is perfect when chillier weather arrives. Wondering how to nail casual style well into your 30s? This combination is the perfect answer.