Charcoal Windowpane Double Breasted Suit by VinciThe Charcoal Windowpane Double Breasted Suit exudes a subtle confidence that's both contemporary and refined. Vinci brings you a look that feels as sharp as it looks without trying too hard. The Vinci tailored charcoal windowpane suit is available exclusively at SuitUSA in a classic charcoal shade. The Charcoal Windowpane Double Breasted Suit by Vinci features a wool feel poly rayon blend, designed to offer a smooth drape and comfortable fit.