Knights are continually fighting, or at least are exercising most violently in tourneys; yet the proportion of contestants slain is not very great. This is because their armor makes them almost invulnerable. After a battle, if you count the dead, you find they are usually all from the poor villein infantry or the luckless camp followers. Yet this harness has inconveniences. It is so heavy that the knight is the prisoner of his own armor. He can hardly mount his horse unassisted. Once flung from the saddle, he can scarcely rise without help. The lightest suit of armor in common use weighs at least fifty-five pounds. Powerful knights often wear much heavier. Yet to be able to move about with reasonable freedom, to swing one's shield, to control one's horse, and finally to handle lance or sword with great strength and precision, doing it all in this ponderous clothing of metal, are what squires like Aimery must learn to a nicety ere claiming knighthood. Wearing such armor, it is not remarkable that noblemen always prefer horseback, and fight on foot only in emergencies.
The prime unit in a suit of armor is the hauberk. He who has a fine hauberk, light (considering the material), pliable, and of such finely tempered steel as to be all but impenetrable, has something worth a small manor land. On this hauberk will often depend his life.
In the olden days, before about A.D. 1000, the hauberk was a shirt of leather or quilted cloth, covered by overlapping metal plates like fishscales. Now, thanks to ideas probably gathered from the Saracens, it is a shirt of ring mails, a beautiful network of fine chains and links, in the manufacturing of which the armorers ("the worthiest folk among all villeins," declares Conon) can put forth remarkable skill. The double or triple links are all annealed. The metal is kept bright and "white" by constant polishing (a regular task for the squires), and Conon has one gala shirt of mail which has been silvered. These garments form an almost complete protection, thanks to long sleeves, a long skirt below the knees, and a hood coming right over the head and partly covering the cheeks. A few brightly colored threads are sometimes worked into the links for ornament, but the flashing sheen of a good hauberk is its sufficient glory. The widowed Countess of Bernon has sent to Aimery, as token of good will, a ring shirt belonging to her husband. The knight-to-be swears that he will never dishonor its former owner while he wears it.