This casual combination of a dark green crew-neck sweater and black chinos is very easy to throw together without a second thought, helping you look seriously stylish and prepared for anything without spending too much time rummaging through your closet. For something more on the casually edgy end to finish this ensemble, add black leather low top sneakers to this getup. When temps are dropping and fall is in full swing, you'll love this look as your favorite for weird transition weather. This getup demonstrates how to keep scoring in the casual fashion department as a 30-year-old man.