a. A piece of defensive armour: originally intended for the defence of the neck and shoulders; but already in 12th and 13th c. developed into a long coat of mail, or military tunic, usually of ring or chain mail, which adapted itself readily to the motions of the body.

• 17.031 in a hauberk of steel mail

“hauberk, n.” OED Online. Oxford University Press, June 2015. Web. 27 June 2015.