Try pairing an overcoat with a blue denim shirt and you'll exude masculine refinement and class. Our favorite of a variety of ways to complement this look is with white leather low top sneakers. Keep this combo ready to go when warmer days are here, and we promise you'll save a ton of time getting ready on more than one morning. So if you're on the hunt for a stylish yet mature combination for a 20-year-old guy, this is it.