Elven Armour

Brypeiros:
 * Light metal armour

20kg, common, 3mm metal, equivalent to 5mm CNTW Sheet
 * Medium metal armour = Universal Armour Mk.1

40kg, uncommon, 6mm metal, equivalent to 10mm CNTW Sheet 60kg, rare, 9mm metal equivalent to 15mm CNTW Sheet 15kg, uncommon, 12-18mm similar to 5mm CNTW Sheet
 * Heavy metal armour =< Universal Armour Mk.2 (with active surface defence)
 * Leather armour, thickness depends on the source of the leather

30kg, rare, 24-36mm similar to 10mm CNTW Sheet = Universal Armour Mk.1 10kg, uncommon, 12-24mm, similar to 5mm CNTW Sheet
 * Woven armour, thickness depends on the material

20kg, very rare, 24-48mm, similar to 10mm CNTW Sheet, = Universal Armour Mk.1

Thick leather and woven armour is not popular due to the inconvenience of its thickness. The primary users of leather and woven armour consists of nobles, mages and high rank military as these armours cost 10 times more compared to their metal counterparts. Even then, there are other factors like material scarcity, material quality, work quality and enchantment quality.

The most important information we get from all of this is that Universal Armour Mk.2 is an epic item!