Sack coat

A sack coat is a type of men's jacket characterized by its straight, loose fit, and simple, unvented design. It is typically single-breasted with a collar, two or three buttons, and lacks a waist seam, giving it a boxy shape. Originally popular in the 19th and early 20th centuries, it is considered versatile and somewhat casual compared to more structured formal coats. Sack coats are often made from wool or similar fabrics, used for everyday wear or semi-formal occasions. Their clean, straightforward styling makes them an enduring classic in men's fashion.