A necktie, long tie, or simply a tie, is a cloth article of formal neckwear or office attire worn for decorative or symbolic purposes, resting under a folded shirt collar or knotted at the throat, and usually draped down the chest. On rare occasions neckties are worn above a winged shirt collar. However, in occupations where manual labor is involved, the end of the necktie is often tucked into the button line front placket of a dress shirt, such as the dress uniform of the United States Marine Corps. Neckties are usually paired with suit jackets or sport coats, but have often been seen with other articles, such as v-neck sweaters. Neckties are reported by fashion historians to be descended from the regency era cravat. Adult neckties are generally unsized in length but may be available in a longer sizes for taller persons. Widths are matched to the width of a suit jacket lapel. Neckties were originally considered "menswear," but are now considered unisex items in most Western cultures. Neckties can also be part of a uniform. Neckties are traditionally worn with the top shirt button fastened, and the tie knot resting between the collar points.