Why not go for a navy overcoat and grey jeans? As well as totally functional, these pieces look great when matched together. White and black leather low top sneakers will provide function, but with a fashion effect. Laid-back getups for stylish young gentlemen aren't actually that hard, as you can see here.
This combination of a black overcoat and grey jeans looks awesome and immediately makes you look seriously stylish. Get a bit experimental with shoes and dress down your ensemble by finishing off with a pair of white and black leather low top sneakers. Men wondering how to rock cool casual dressing in your early 20s, this ensemble should answer your question.