We all look for practicality when it comes to style, and this edgy combination of a multi colored denim jacket and jeans is a perfect example of that. Rev up the formality of your ensemble a bit by wearing a pair of tobacco suede chelsea boots. When leaves change color and fall is in the air, you'll love this combination as your go-to for transitional weather. Ideal if you're on the lookout for some incredibly inspiring casual style for 30-year-old gentlemen.