Vair

Vair is a fur tincture in heraldry, describing a two-color pattern covering the field or a division of the field in a manner considered similar to red squirrel furs, formerly much used in noble and royal mantles. The original form (now distinguished as vair ancien) consisted of rows of wavy U shapes similar the squirrels' white underbellies on such mantles. The modern form is more abstract, formed of rows of tiled irregular heptagons known as "panes" or "bells". The default modern pattern is the metal argent (white or silver) over the colour azure (blue), although other orders and hues can be specified in a blazon using the field description vairy.