We're all seeking functionality when it comes to styling, and this off-duty pairing of a grey vertical striped long sleeve shirt and blue overalls is a practical illustration of that. Complement your look with a pair of casual boots to easily boost the style factor of your outfit. With rising temperatures come warmer afternoons and balmy nights and the need for a kick-ass getup just like this one. When it comes to casualwear for 30-something Millennial gentlemen, this look looks cool on most gentlemen.