Weight: 55 lb.
Estimated Value (Sane Cost Guide): 20,000 gp
DMG Value: 50,001+ gp
While wearing this armor, you gain a +3 bonus to AC, you are immune to fire damage, and you can understand and speak Primordial. In addition, you can stand on and walk across molten rock as if it were solid ground.
Made of interlocking metal rings, chain mail includes a layer of quilted fabric worn underneath the mail to prevent chafing and to cushion the impact of blows. The suit includes gauntlets.
Source: DMG p167