If you’re in the world of big business – finance, law, etc – the dress code will typically lend itself to corporate formality, especially at a senior level. It is imperative that your suit – and yes, it should be a suit you’re wearing – sends the right message about you and reflects the importance of your role. To put it simply: if you’re making big decisions you want to look capable of doing so. A double-breasted suit jacket exudes a professional silhouette while a pinstripe pattern – a stalwart of the Wall Street set – adds a sense of sartorial refinement to the classic business suit. Keep accessories minimal: a tie pin should do the trick.