They provide no protection from god-aligned monsters nor do they possess stat bonuses of any sort, so food and other equipment should be taken. Alternatively, the shard of Zaros, rewarded after Fate of the Gods, acts as god protection to all factions in the dungeon, including those in the prison. The set also has an emote once all the parts are worn, which is activated by clicking "Activate" on the robe top. The full set of these robes can be stored in the armour case of a player-owned house.