This classic and casual combination of a pea coat and a black crew-neck sweater is extremely easy to pull together in seconds time, helping you look dapper and prepared for anything without spending a ton of time searching through your closet. Dial down the formality of this outfit by rounding off with a pair of white canvas low top sneakers. As you're transitioning from your 20s to your 30s, you want to start dressing more professionally. In this case, inspiration like this comes in handy.