Jack Chains were an important part of the protective equipment of the medieval foot soldier who, typically, was not dressed in plate armor but wore a padded arming jacket (“jack”) to protect his upper bodywith Jack Chains tied or sewn to the arms to provide protection from slashing cuts. Modern studies have indicated that these chains prevented up to 80% of potential arm injuries. The AB0087 Jack Chains are an important accessory for our AB0158 ~ AB0160 Arming Jackets.