Full plaid
From Wikipedia, the free encyclopedia

A full plaid is a long piece of tartan fabric, traditionally worn as part of a full highland dress uniform. It usually matches the tartan of the kilt. A full plaid is pleated the whole way, with half of it's length sewn shut (so that the pleats cannot open). Its length is almost twice the height of the wearer (about twice the distance from the ground to the wearer's shoulder).
A full plaid is typically only seen my members of pipe bands which elect to wear full dress (military styled) uniforms.
It is wrapped around the wearer's chest and under right arm, pulled firm to the body. The excess fabric (the open-pleated end) is thrown over the wearer's left shoulder. Properly worn, the edge of the plaid should be level with top of left spat point at rear of leg with fringe hanging down below this level. Lower edge of the plaid should be horizontal and parallel with ground. Leading edge of plaid and front face of plaid secured by plaid brooch (often a cairngorm brooch.)
To the lay person, it would appear as a sort of long, tartan, shoulder-cape.