You'll be amazed at how very easy it is for any guy to pull together this casual ensemble. Just a navy overcoat worn with black sweatpants. White leather low top sneakers are the simplest way to inject a dash of stylish casualness into this getup. So so as you can see, it's a kick-ass, not to mention season-appropriate, getup to keep in your seasonal rotation. When it comes to casual fashion tips for mature gentlemen, this look suits almost any gent.