A cummerbund is a pleated waistband worn with a tuxedo and is designed to cover the fabric of the shirt where it meets the waist to maintain the sleek nature of a tuxedo.
Also popular as promwear, the pleats in a cummerbund should face up.
The word is sometimes mispronounced as ‘cum-ber-bund (guilty as charged) .
Quick Cummerbund History and Know-How
The cummerbund is an Indian invention, adopted by the Brits who thought it would be useful for catching breadcrumbs while dining. (Yes. You read that correctly).
The cummerbund makes up a formal tuxedo outfit and is included in the rental package. It should be worn pleats facing up (too catch the breadcrumbs) with a single breasted jacket, bow tie and no vest. Read more: Wedding Guide to Suits: Part VI Cummerbunds | Custom Menswear and Trends