1. During the Wei and Jin Dynasties in the Three Kingdoms, it was an iron sleeve armor with short sleeves and a chest back, made of fish scales. The shape of the sleeve armor is very similar to that of the western Han dynasty, and it is worn from the head. This sleeve armor is very hard. Basically, it followed the shape of the Eastern Han Dynasty, and the rafters were decorated with tassels.
2. There are several kinds of mirror armour in Song Dynasty, such as steel chain mail, black lacquered Lingshui Chunjia, mingguang fine mesh armour, mingju armour and Buren armour. According to the History of Song Dynasty, a set of mirror armor in Song Dynasty weighed 45 kg to 50 kg and had 25 nail blades. Manufacturing time 120 working days, and the cost is three and a half. It should be said that the protection of the Song Dynasty was stronger than that of previous dynasties. Soldiers, cavalry and generals all had a lot of armor.
3. Due to the change of military organization, strategy and tactics, the heavy cavalry (armored cavalry) in the Song army can't be compared with the Northern Dynasty to the Sui Dynasty in number and importance, but the vest (armored cavalry) is still a protective feat in the Northern Song Dynasty. There are two kinds of horses in the early Song Dynasty: iron and leather, but it seems that only leather was used in compiling the general theory of martial arts classics. A collared vest recorded in Wu Yao includes five parts: a face curtain (with a half curtain attached), a chicken neck, a swinging chest (as a chest), a vest and a ring. This vest was originally black, but it was changed to vermilion in the third year of the Northern Song Dynasty. In my impression, the war scene in the new water margin has vests, but I think the scale used seems too big and exaggerated. During the Southern Song Dynasty, the most famous equipment was the heavy cavalry of Tiefutu in Jin State. Everyone is fully armed and the horses are well equipped, which is very impactful.