When the helm and crest are shown, they are usually accompanied by a mantling. This was originally a cloth worn over the back of the helmet as partial protection against heating by sunlight. Today it takes the form of a stylized cloak hanging from the helmet. Typically in British heraldry, the outer surface of the mantling is of the principal colour in the shield and the inner surface is of the principal metal, though peers in the United Kingdom use standard colourings (Gules doubled Argent - Red/White) regardless of rank or the colourings of their arms. The mantling is sometimes conventionally depicted with a ragged edge, as if damaged in combat, though the edges of most are simply decorated at the emblazoner's discretion.