One of the best ways for a man to style a grey blazer is to wear it with a charcoal crew-neck t-shirt in a laid-back combination. And if you wish to immediately rev up this look with shoes, why not add a pair of tan suede double monks to the mix? You can bet this ensemble is great come boiling hot sunny days. This ensemble suggests how to succeed in classic and casual dressing as a 20-year-old gent.