Try teaming a brown fleece polo neck sweater with a blue vertical striped long sleeve shirt to pull together a dressy, but not too dressy outfit. For a more laid-back aesthetic, complete this ensemble with a pair of black suede low top sneakers. This one is a good choice if you're putting together a knockout outfit for weird fall weather. As you're moving from your 20s to your 30s, you want to start dressing like a grown-up. In this case, combinations like this are a safe option.