This laid-back combination of a charcoal turtleneck and skinny jeans is a goofproof option when you need to look dapper but have zero time. If you're clueless about how to finish, a pair of black and white leather low top sneakers is a tested option. This one is a smart idea when it comes to putting together a standout outfit for transitional weather. If you're often not sure how to dress as a guy in his 20s, this pairing is a great illustration.