Make a blue crew-neck sweater and grey pants your outfit choice to look like a refined gentleman at all times. For something more on the classy end to complement this ensemble, complete this getup with a pair of black dress shoes. This one is a viable option if you're picking out a well-coordinated look for weird fall weather. As you're going from your teenage years to your 20s, you want to start dressing more maturely. That's when ensembles like this are a surefire option.