This combination of a grey turtleneck and jeans is on the casual side yet it's also seriously stylish and incredibly sharp. On the shoe front, this ensemble pairs wonderfully with white canvas low top sneakers. Keep this outfit in your head when spring comes, and we promise you'll save a ton of time getting ready on more than one morning. Gents wondering how to sport modern off-duty outfits as you go through your 20s, this pairing should answer your question.