This combination of a blue denim jacket and blue jeans is super easy to achieve and so comfortable to rock a version of from dawn till dusk as well! When in doubt as to what to wear in the shoe department, complete this look with white canvas low top sneakers. You can bet this getup will become your favorite come warm summer days. Think it's hard for 40-something men to master modern casual dressing? This pairing is indisputable proof of otherwise.