The Lépine knife is a type of folding knife that originated in France. It is characterized by its simple design, featuring a single blade that folds into the handle. The knife is named after Jean Lépine, a French cutler who popularized this style in the 19th century. Typically, the Lépine knife has a straight blade and a smooth handle, making it easy to carry and use. It is often used for everyday tasks and is appreciated for its practicality and elegance. The design has influenced many other knife styles around the world.