The skin unlocked by this item is required to complete the following achievements:
{"item_id": "85042", "name": "The Twins' Breastplate", "type": "Armor", "level": "80", "rarity": "Ascended", "vendor_value": "240", "icon_file_id": "699218", "icon_file_signature": "64725E0CEBDA22C75C16B70B0CDE58E4E6E7400A", "default_skin": "107", "upgrade_recipes": [], "game_types": ["Activity", "Wvw", "Dungeon", "Pve"], "flags": ["HideSuffix", "AccountBound", "AccountBindOnUse"], "restrictions": [], "details": {"type": "Coat", "weight_class": "Heavy", "defense": "381", "infusion_slots": [{"flags": ["Infusion"]}], "infix_upgrade": {"id": 1344, "attributes": [{"attribute": "Power", "modifier": 121}, {"attribute": "Precision", "modifier": 67}, {"attribute": "CritDamage", "modifier": 67}, {"attribute": "ConditionDamage", "modifier": 121}]}, "suffix_item_id": "", "secondary_suffix_item_id": ""}}