Film noir is a 1940s and 50s crime film aesthetic of dramatic lighting, detective dress, and moody atmosphere, translating hard-boiled cinema into dark, sophisticated clothing. Pencil skirts cover the bottoms. Silk blouses go above them. Belted trench coats layer over the top. Peep-toe heels go below, with wide-brim fedoras and gloves completing 1940s and 50s silhouettes in black and grey.