A white turtleneck looks so casually cool when matched with navy jeans. You could perhaps get a bit experimental in the footwear department and add a pair of brown suede tassel loafers to the equation. This combo shows that in your early 20s your sartorial options are far from limited.
White Turtleneck with Brown Suede Tassel Loafers Outfits In Their 20s
If you appreciate comfort dressing, go for a white turtleneck and beige chinos. A pair of brown suede tassel loafers will put a different spin on this ensemble. Gentlemen who are curious how to wear classic and casual style as you make it through your 20s, you have your answer.