The Traveler's Vestment is a low to mid-ranked mystic armor in Final Fantasy XII that boosts the wearer's Defense by 18 (Zodiac) or 16 (original) and Magick Power by 5. In the Zodiac versions, it also gives 30 to MP and 50 to HP.
The Traveler's Vestment is sold for 1,900 gil from Rabanastre after defeating Belias, and in Jahara. It is found as a treasure in Zertinan Caverns' Halls of Ardent Darkness (east of the area; 60% chance to appear, 55% chance for gil, 50% chance the item treasure is the Traveler's Vestment without the Diamond Armlet equipped ). It rarely drops from the Ichthon in the rainy Giza Plains.
The Traveler's Vestment is made in the bazaar set "Traveler's Garb" by selling two Braid Wools (from gator-type enemies, earliest from Greeden, and from Ozmone Hare), two Tanned Hides (from various enemies, e.g. Slaven), and five Water Stones (from various enemies, e.g. Giza Rabbit). The items for the bazaar set can be procured much earlier than the Traveler's Vestment is available from shops.
The Traveler's Vestment is sold for 1,900 gil in Jahara and Mt Bur-Omisace. It is found as a treasure in rainy Giza Plains' Tracks of the Beast (80% chance to appear, 50% chance for gil, 50% chance the item treasure is the Traveler's Vestment without the Diamond Armlet equipped), as well as in the Trial Mode Stage 54 with the Diamond Armlet equipped. It still rarely drops from the Ichthon in the rainy Giza, and is made in the bazaar set "Traveler's Garb" by selling the same items as before.
The Traveler's Vestment is a low to mid-ranked mystic armor, giving 18 or 16 Defense depending on version, and 5 Magick Power, as well as 50 HP and 30 MP in the Zodiac versions. Mystic armor offer magick-related bonuses that affect all types of magickal actions, from casting black magick to damage an enemy, to casting white magick to heal the party. Magick Power is also a factor when determining damage dealt by katana, staves, and maces. The HP and MP bonuses in the Zodiac versions can be good as well, especially if gotten early from the bazaar.
In the Zodiac versions, White Mage, Red Battlemage, Black Mage, and Bushi can equip it, and so the Traveler's Vestment is only useful to buy if the player has chosen any of these License Boards for their party. In The Zodiac Age versions, after fighting Belias the player can choose two License Boards per party member; it is usually a good idea to pair jobs that use two different types of armor for versatility.
In all versions, the Traveler's Vestment is available through the bazaar much earlier than from the shops: Braid Wool can be procured from the Rare Game Greeden on the Dalmasca Estersand riverbank (though a tough foe to defeat early on), and Tanned Hides and Water Stones can be obtained from enemies on the dry Giza Plains, Slaven and Giza Rabbits. If the player makes the "Traveler's Garb" early, they can skip all the early mystic gear sets in favor of it.