Annexed (at right) is a seal of Alexander I in which he is represented fully cased in the armour of that period.
Here we find the scaled mail-coat composed of mascles, or lozenged pieces of steel, sewed upon a tunic of leather, and reaching only to the mid thigh.
The hood is of one piece with the tunic, and covers the head, which is protected with a conical steel cap, and a nasal; the sleeves are loose,
so as to show the linen tunic worn next the skin, and again appearing in graceful folds above the knee;
the lower leg and foot are protected by a short boot, armed with a spur.
The king holds in his right hand a spear, to which a pennoncelle, or small flag, is attached, exactly similar to that worn by Henry the First;
the saddle is peaked before and behind; and the horse on which he rides is ornamented by a rich fringe round the chest, but altogether unarmed.
(Seal in the Diplomata Scotice, plate 7. Tytlerís History of Scotland vol. ii. p. 360.)
Source: Electric Scotland