It's the double layer of fabric that holds the buttons and buttonholes in a shirt. Discover more about the "cannoncino" aka placket.
History of the shirt: the placket. - Xacus
Men's pocket squares: how to choose and match the pocket handkerchief
The easy guide to parts of a shirt for men - Oliver Wicks
Ivana women's shirt in virgin wool enamel button placket – Finamore 1925
What is a Tuxedo Shirt & How to Wear One - Suits Expert
MJ'S DETAILS, This tuxedo shirt with Mergellina shark collar and double-cuff wins you over with its modern cut and great comfort. The inserted part
Tuxedo shirt Sartorial-Piquet made of cotton poplin from Thomas Mason - handcrafted
Pleated White Tuxedo Shirt – StudioSuits
Durins Placket on LinkedIn: #formalwear #formalshirts #menswear
Dress Shirt Front Placket Types - Proper Cloth Help
The Everyday Shirt – Brochu Walker
White Sea Island Quality Cotton Dress dress shirt with T&A Collar