For an outfit that's super straightforward but can be flaunted in plenty of different ways, consider teaming a tan denim jacket with navy jeans. For a more casual feel, why not add white canvas high top sneakers to the mix? Keep this look ready to go when spring comes, and we guarantee you'll save a lot of time getting ready on more than one occasion. Gentlemen wondering how to wear modern casual dressing as you mature into your 30s, this getup should answer your question.