If the setting calls for a casually neat look, you can wear a charcoal suit and a black crew-neck t-shirt. A pair of high top sneakers adds more character to your outfit. Those who wonder how to pull off classic and casual dressing as you progress through your 20s, this pairing should answer your question.
For an ensemble that's very easy but can be styled in a great deal of different ways, make a charcoal suit and a grey hoodie your outfit choice. Feel uninspired with this outfit? Let high top sneakers mix things up. Ideal to portray that even as a 20-year-old man you're confident enough to make your own style choices.