The 3rd age platebody is a part of the 3rd age melee set. Requiring level 65 Defence to wear, it has the second highest defence bonuses of all non-degradable melee body slot items, only surpassed by the justiciar chestguard. The 3rd age platebody is a possible reward from treasure trails, and cannot be bought in stores nor made through the Smithing skill. Its bonuses resemble that of chainbodys; it has no negative ranged attack bonus and emphasises crush defence bonus.
Due to its price and lack of offensive bonuses, it is very rarely used for combat.