Here is a system I’d like to see (as a general idea and starting point).
ARMOR
Basic Armor
Partial Armor (torso; 10-40% coverage): Covers breastplates, coats, cuirasses, jacks, jackets, shirts, and vests.
• Types Table: Padded, Leather, Studded Leather, Chainmail, Hardened Leather, Scalemail...