For a casual look, team a crew-neck sweater with white cargo pants — these two items play nicely together. Rounding off with black athletic shoes is a guaranteed way to infuse a more casual twist into your ensemble. Keep this combo in your front hall closet when spring sets it, and rest assured, you'll save a lot of time racking your brain for what to wear on more than one morning. This combo demonstrates how to stay stylish after 50.