For a laid-back and cool outfit, reach for a grey long sleeve shirt and black jeans — these pieces go nicely together. If you need to effortlessly dial up your outfit with one single item, why not complete your outfit with beige suede chelsea boots? With rising temperatures comes a sense of spring renewal and the need for a breezy outfit just like this one. This outfit shows how to kill in casual dressing as a 20-year-old guy.