This pairing of a shirt jacket and a navy turtleneck is a must-try effortlessly smart look for today's gentleman. You could perhaps get a little creative on the shoe front and play down your ensemble by rocking a pair of white canvas low top sneakers. So as you can see here, it's a cool, not to mention season-appropriate, look to have in your seasonal rotation. This is a stylish but also age-appropriate combo for a 40-year-old gent.