You're looking at the hard proof that a beige sweatshirt and a long sleeve t-shirt look awesome paired together in a casual menswear style. If you need to easily play down your look with footwear, why not complete this outfit with a pair of black canvas sandals? Stick with this one if you're on the lookout for a solid summery ensemble. Guys who are curious how to wear modern off-duty outfits in your 20s, this ensemble should answer your question.