In fashion, the term la mariniere refers to a classic, long-sleeved, horizontal striped shirt. It is an essential item in the gamine wardrobe. It is comfortable, cool, and timeless. La mariniere has been worn by chic women and men. Think Coco Chanel, and Pablo Picasso to contemporary fashionable folks like Lea Seydoux, seen below. The styling below on Lea is playful and casual but la mariniere is equally alluring done classic and polished.