For a look that's super simple but can be modified in plenty of different ways, choose a white and navy crew-neck t-shirt and sweatpants. If you want to effortlessly spruce up this getup with shoes, add a pair of black leather derby shoes to your ensemble. So if you're in search of a look that's on-trend but also feels totally season-appropriate, look no further. Wondering how to dress your age as you move through your 20s? This combination is a wonderful example.