Half Plate Armour +2 is a rare Medium Armour.
This breastplate is far tougher than it appears, taking blows from common weapons without suffering so much as a scratch.
Properties
17
Armour Class + Dexterity modifier (max +2)
Medium Armour 
Required Proficiency: Medium Armour
Rarity: Rare
Enchantment: + 2
Weight: 12 kg / 24 lb
Price: 1100 gp
Special
The wearer of this item gains:
- Superior Plate: You take 2 less
Piercing damage. 
Disadvantage on Stealth checks.
Where to find
Sold by traders in Act II and Act III.