For a look that's refined and truly GQ-worthy, opt for a navy shirt jacket and a charcoal waistcoat. If in doubt about the footwear, go with a pair of dark brown suede loafers.
Charcoal Waistcoat with Navy Shirt Jacket Outfits
This polished combination of a navy shirt jacket and a charcoal waistcoat is a must-try ensemble for any modern gent.