This casual combo of a brown turtleneck and sweatpants is a foolproof option when you need to look stylish but have no extra time. Let your outfit coordination prowess truly shine by finishing off this look with a pair of white leather low top sneakers. So if you're hunting for an outfit that's dapper but also feels totally spring-friendly, look no further. A fail-safe option outfit proper for 20-year-old men who prefer to dress more elegantly.