Martingale (clothing)

A martingale is a belt or half-belt, typically sewn onto the back of a garment, primarily coats or jackets, to give it a more fitted shape. It is often adjustable, allowing the wearer to cinch in the waist and create a more defined silhouette. The martingale can be a purely decorative element, or a functional part of the garment's design. Functionally, it serves to gather excess fabric, improving the garment's fit and preventing a boxy or shapeless appearance. Martingales are often found on garments with a looser or more voluminous cut, offering a customizable level of shape and form. The origin of the term likely refers to the similar strap used in horse harnesses to prevent the horse from rearing.