The standard form of protective body armour was the coat of mail
(dir‘, pl.
durū ‘). In addition
sard or
zard are used for mail in general or a coat of mail with the verbal forms
sarada and
zarada being used for the making of mail. In the classical Roman period, body armour seems to have been mostly lamellar, that is using small plates of metal sewn on to a cloth or leather garment to provide protection. Mail was certainly known in the Roman army from the third century and by the time of the Muslim conquests it was probably the main form of body armour for both Byzantine and Sasanian soldiers. In the Qur’ān, the making of coats of mail is one of the blessings conferred by God on David. The early Islamic sources treat the coat of mail as a standard piece of military equipment. It could be worn under a cloak
(qabā’) to disguise it, as Ibn al-Ashtar and his followers did in Kūfa when they were taking over the city in the name of al-Mukhtār in 66/685. In 145/762 the ‘Alid rebel, Ibrāhīm b.‘Abd Allāh was killed when he loosened his mail coat
(qabā’ zarad) because of the heat and was caught by a stray arrow. There are also references to the practice of wearing two coats of mail
(dir’ayn), the under one being shorter or even made of fabric or leather.