This look clearly illustrates that it pays to invest in such menswear items as a grey trenchcoat and black jeans. Throw black leather casual boots in the mix and ta-da: the getup is complete. Keep this look ready to go come spring, and rest assured, you'll save a ton of time getting ready on more than one occasion. As you're progressing through your late 20s, you probably want to start dressing like an adult. In this case, outfits like this prove useful as a source of inspiration.