Final answer:
The lorica segmentata was a flexible type of Roman armour made of metal strips, well-suited for protection against common threats in warfare. Its design allowed for easier movement and weight distribution. It was prevalent in the Roman legions during the 1st and 2nd centuries CE.
Step-by-step explanation:
The lorica segmentata was a type of Roman military armour composed of metal strips, fastened to internal leather straps. These strips were arranged horizontally on the body, overlapping downwards, and they enclosed the torso in two halves, being fastened at the front and back. The design allowed for a good balance of weight distribution and flexibility, which historically was an improvement over the earlier chainmail armour, such as the lorica hamata, or the scale armour called lorica squamata.
The segments of the lorica segmentata provided excellent protection against slashing and stabbing attacks, which were common threats in Roman warfare. Though it offered substantial protection, it was also cumbersome and time-consuming to maintain and repair. Archaeological evidence and historical depictions show that this type of armour was widely used by the Roman legions, especially during the 1st and 2nd centuries CE, before later being replaced by other forms as military needs evolved.