Scale armour is an early form of armour consisting of many individual small armour scales (plates) of various shapes attached to each other and to a backing of cloth or leather in overlapping rows. Scale armour was worn by warriors of many different cultures as well as their horses. The material used to make the scales varied and included bronze, iron, rawhide, leather, cuir bouilli, seeds, horn, pangolin scales. The variations are primarily the result of material availability.
Scale armour is armour in which the individual scales are sewn or laced to a backing by one or more edges and arranged in overlapping rows resembling the scales of a fish/reptile or roofing tiles. The scales are usually assembled and strapped by lacing or rivets. Lorica squamata is an ancient Roman armour of this type.
Other types of armour made from individual scales but constructed in a different manner have their own separate names, such as lamellar armour where the individual scales are perforated on several or all edges and lashed tightly to each other in straight ridged rows and do not need to be attached to a backing. The Romans also had a variant called lorica plumata in which the scales were attached to mail.
Horses covered with scale armour are mentioned in the ancient Chinese book of poetry Shi Jing, which is several thousand years old. Scale armour is not of frequent occurrence on the grave monuments of the German frontier. On two tombstones of the Sertorii at Verona (one that of a centurion, the other that of a standard-bearer) both figures are represented wearing a tunic of scale armour which covers the shoulders and comes down below the belt. The Carnuntum monument of Calidius (a work of the middle of the first century) shows also a scaled tunic of a centurion. Again, in the collection of marble portrait-busts from the great Gallo-Roman villa of Chiragan near Toulouse, the Emperors Antoninus Pius and Severus both appear wearing corselets of scale armour.
The Scythians' horse warriors appear to have used scale or possibly lamellar armour, evident both from contemporary illustrations and burial finds in kurgans. The armour was made from small plates of iron or bronze. Unique to the Scythians, about 20% of the females found in graves were dressed for war, some including armour, which may have inspired the Greek tales of Amazons.