Demonstrate your expertise in men's fashion by opting for this casual pairing of a dark green parka and a white crew-neck t-shirt. Feeling venturesome? Break up this ensemble by slipping into a pair of white leather low top sneakers. As the weather starts getting warmer, it's time to get rid of those heavy winter clothes and choose an ensemble that's lighter, like this one here. When it comes to casualwear for 20-somethings, this look looks great on most gentlemen.