This combo of a dark green bomber jacket and a grey crew-neck t-shirt is hard proof that a straightforward casual getup can still be seriously sharp. Feeling experimental? Shake things up with dark green suede desert boots. As the weather starts to get warmer, it's time to shed those heavy winter gear and opt for an ensemble that's lighter, like this one here. A reliable option getup appropriate for 20-year-old gentlemen who like to dress casually.