A neckerchief (from neck (n.) + kerchief), sometimes called a necker, kerchief or scarf, is a type of neckwear associated with those working or living outdoors, including farm labourers, cowboys and sailors. It is most commonly still seen today in the Scouts, Girl Guides and other similar youth movements. A neckerchief consists of a triangular piece of cloth or a rectangular piece folded into a triangle. The long edge is rolled towards the point, leaving a portion unrolled. The neckerchief is then fastened around the neck with the ends either tied or clasped with a slide or woggle. Neckerchiefs worn by sailors are shaped like a square, and are folded in half diagonally before rolling, with rolling occurring from the tip of the resulting triangle to its hypotenuse. Either neckerchief is then placed on the wearer's back, under or over the shirt collar with the ends at the front of the wearer. The rolled ends then pass around the neck until they meet in front of it, where they are secured together, either with a knot, such as a reef knot or a slip knot, or with a rubber band or other fastener (called a woggle or neckerchief slide) and allowed to hang. A slip knot (vs. a simple reef or square knot) will give way if the neckerchief gets caught and is thus less likely to choke the wearer. Sailors in the United States Navy have worn a rolled black neckerchief since the American Civil War. It is currently part of the men's service dress uniform for junior enlisted sailors as well as the women's summer dress uniform. The Scouting movement makes the neckerchief part of its uniform. A generally ceremonial item, the neckerchief is taught to be a practical wilderness item in the Scouting tradition. The neckerchief, unrolled, is designed to be the perfect size for use as a triangular bandage for first aid. The origin of the Scouting neckerchief seems to be in Robert Baden-Powell's participation in the Second Matabele War in 1896; where he worked with Frederick Russell Burnham, an American-born scout employed by the British Army.