As you can see here, looking effortlessly polished doesn't require that much effort. Reach for a turtleneck and dark brown dress pants and be sure you'll look incredibly stylish. White leather low top sneakers are a surefire way to bring an element of stylish effortlessness to this ensemble. Keep this outfit in your head come warmer weather, and rest assured, you'll save a lot of time getting dressed on more than one morning. This combo should clear any doubts you had about wearing more mature clothes as a man in his 20s.