A kilt (Scottish Gaelic: fèileadh [ˈfeːləɣ]) is a type of knee-length non-bifurcated skirt with pleats at the back, originating in the traditional dress of Gaelic men and boys in the Scottish Highlands. It is first recorded in the 16th century as the great kilts, a full-length garment whose upper half could be worn as a cloak. The small kilt or modern kilt emerged in the 18th century, and is essentially the bottom half of the great kilts. Since the 19th century, it has become associated with the wider culture of Scotland, and more broadly with Gaelic or Celtic heritage. It is most often woollen cloth in a tartan pattern.
Although the kilt is most often wear on formal occasions and at Highland games and sports events.
Particularly in North America, kilts are now make for casual wear in a variety of materials. Alternative fastenings may be in use and pockets inserted to avoid the need for a sporran. Kilts have also been adopted as female wear for some sports.