What is a Breton shirt?

A Breton shirt, also known as a marinière, is a classic French striped shirt characterized by its horizontal navy and white stripes. Originally worn by sailors in Brittany, France, it has become a timeless fashion staple associated with nautical style. Typically made from cotton, the shirt features a boat neckline and three-quarter sleeves, embodying a casual yet chic aesthetic. It is often celebrated for its versatility and has been popularized by various fashion icons over the years.