Weight: 2-4 kg
In the early fourteenth century plate armour for men was rare - plate armour for horses even rarer. Yet by the time of Bannockburn, horse armour made out of iron or steel was starting to appear. Hardened leather plates were probably more common.
The peytral was a breastplate for a horse, hung from the neck and probably strapped to the saddle on either side.
Although it is extremely difficult to kill a horse with a frontal attack to the chest, this was an important area to protect on horses smashing through the enemy in heavy cavalry charges.
As well as the danger of injury when contact was made, the horse could be hit by missiles, such as arrows, as soon as the charge brought it within around 150 yards of the enemy. An arrow in the chest might not kill the horse, but it could easily anger it, causing the rider to lose control.