This off-duty combo of an olive shirt jacket and blue ripped jeans is extremely easy to pull together in no time flat, helping you look amazing and prepared for anything without spending too much time rummaging through your closet. For something more on the dressier end to finish off this ensemble, complete your getup with a pair of brown suede casual boots. When it comes to casual style tips for 30-something Millennial guys, this combo is perfect.