If you're scouting for an off-duty and at the same time sharp ensemble, go for a sweatshirt and a turtleneck. Balance your ensemble with a sleeker kind of shoes, like this pair of black leather monks. If you're not sure how to dress as a gent in his 20s, this ensemble is a vivid example.
A sweatshirt and a turtleneck are bona fide menswear essentials if you're planning an off-duty wardrobe that matches up to the highest sartorial standards. Go ahead and complement your outfit with navy athletic shoes for a laid-back feel. Rock this getup when you want to present a more mature image as a man in his 20s.