Lorica Hamata
According to Connolly, there are several statues of armoured warriors from Southern France and Italy depicting two different styles of mail. The first has what appears to be a short cape draped around and overhanging the shoulders. A bronze clasp was riveted to the shoulder sections of the mail and hooked together to hold the mail cape in place. The second style had wide straps coming from the back over the shoulders to fasten on the chest with no overhang (see Figure 10).26 The former style was Celtic in origin27 while the latter was Greek. Connolly speculates that due to the large shield carried by Roman legionaries and the low combat stance used for close formation fighting, the most accessible area to an enemy would be over the top of the scutum to hit the shoulders and upper back. He suggests that this may have been why the Romans added shoulder doubling to their mail.28 However, it is equally plausible for it to have been done simply because that was the current Greek fashion. It is likely that the Romans and the Greek colonists in Italy would have adopted mail from the Celts and modified it to conform to Greek fashion—hence the similarity with other types of Greek armour. There is a remarkable resemblance between the Greek linothorax29 and the Roman Republican hamata.
Fig. 10—Reconstruction of a Roman lorica hamata made of alternating rows of riveted and punched links. The overlapping shoulder sections provide two layers of protection for the upper body
The Romans used mail extensively, and today the generally accepted Latin term for it is lorica hamata. The term apparently refers to armour that has been "hooked" (or linked) together. However, there are very few instances of this term in contemporary accounts. The earliest occurrence of the term lorica hamata is in St. Jerome's Vulgate [1.17.5], written in 405 AD. Virgil's Aeneid (1st century BC) mentions armour in which rings, linked or hooked (hamis) into one another, were of gold [III.467, V.259, VII.639].30 Sidioius uses a similar phrase [Carm. ii. 322].31 Arrian [l.c], Polybius [6.23.15, 30.25.3], and Josephus [5.7.299] all use the Greek term, halusidotos, (ἁΛυσΙδωΤος) which refers to the armour being "made in chain fashion." The only Latin term used in most texts is simply lorica, which is a general term for any type of armour. Earlier period Roman mail seems to have had smaller links than later examples with inside diameters (I.D.) as small as 4mm. Second century Roman mail consisted of larger links with an I.D. of 7-7.5mm and a thickness of about 1mm. They were slightly flattened and riveted with round rivets. There are many similarities between various finds suggesting at least partially centralized production.
Once mail was adopted by the Romans, it quickly spread to the Aegean and the Middle East. By the 3rd century AD, mail was very common in Europe and the Aegean, throughout the Middle East, and on the Indian subcontinent. There is a misconception that when the Roman armour of segmented plates, called lorica segmentata by modern scholars, was developed in the last half of the 1st century BC,32 that it supplanted mail. This was not the case. Mail saw continuous use before, during, and after the period in which segmentata was being used.
Mail has many advantages over segmented plate:
It is more flexible and more comfortable than segmentata
It provides better coverage—segmentata cannot protect the armpits, stomach, groin or thighs the way mail can
Mail is easier to store, transport, and clean
It is easier to tailor to individuals—an arsenal would only need to stock a few standard sizes to fit the vast majority of legionaries
Mail is quicker and easier to don
Mail is less susceptible to damage—the fittings on extant segmentata are very fragile, to the point that reconstructions do not attempt to replicate them
Mail has a longer lifespan—there are many extant examples of mail that have been repaired multiple times with patches of different types of mail from different time periods33
In the field, all that is required to repair mail is a piece of wire—there are extant examples in which a piece of wire has been wrapped around the damaged section several times to hold it together. Even in the workshop, all that is required to make most repairs is some replacement links and rivets and a peening tool
Given mail's ease of repair and its long life span, it is reasonable to conclude that the reserves of Roman mail continued to grow during the period of the Roman Republic and later the Empire, and that more and more of it was available for troops to wear.
Segmentata does have advantages though:
It is less expensive and faster to produce than mail, which is probably why the armour was developed in the first place
Segmentata is lighter than mail—but it also provides less coverage. If mail was reduced so that it only covered the same areas as a segmentata, the weight difference would not be so great
Segmentata offers better protection against blunt trauma than mail. Many assume that it also provides better protection against other attacks, but it will be shown that this may not have been the case