This relaxed casual combo of a white crew-neck t-shirt and blue jeans is a real lifesaver when you need to look sharp in a flash. On the fence about how to finish this look? Finish off with a pair of brogue boots to turn up the style factor. A kick-ass combo like this one is just what you need come blazing hot sunny days. Men wondering how to rock modern casual style in your twenties, this outfit should answer your question.