Cloak of St. Aspira
A magnificent cloak of velvet and fur, blessed in the Ecclesiarchal Palace of Terra to ward away the blows of the Emperor's enemies. The Cloak of St. Aspira adds 1 to a model's Armour save, so an Adepta Sororitas Heroine in power armour wearing the cloak will have an armour save of 2+.
Errata — Chapter Approved Compilation Q&A (v3.0): An Adepta Sororitas Heroine accompanied by her Celestian retinue may still take Independent-Character-only wargear like the Cloak of St. Aspira — having a bodyguard does not affect her ability to use it.