Below is a list of all the costumes for Jade in Dragon Quest XI S. During Jade’s Interlude, you will have access to one of her costumes, but it is removed from your inventory during the second part of the game. You don’t gain it permanently until the very end of the game, and only in the Definitive Edition.
For this costume, you will need three pieces of equipment, the Bunny Ears, the Bunny Suit, and the Fishnet Stockings. The Bunny Ears can be purchased in Gallopolis, so they are easy to come by without needing to do any extra leg work. The Fishnet Stockings can be found in a house in Heliodor, which you can enter via a chimney. The Bunny Suit requires a recipe, though, called Down the Rabbithole, which can be gotten via trading Tokens at the one counter in Puerto Valor’s casino. Note that both the Bunny Ears and Fishnet Stockings are also included in this recipe, in case you want to forge them, too. If you’re just planning on getting the Bunny Suit, then you will need a Narspicious, Butterfly Wing (x2), and a Green Eye.
The Medal Maniac
The Uniforme de l’Academie is a piece of armor that can be equipped to any of the female party members. There are three of these in the game, although in the Definitive Edition, you only need one in order to access the costume on all three characters. In the original version of the game, you will need to equip them on each character to trigger the costume. You get one for turning in 25 Mini Medals, another is behind the Magic Key door in the Mini Medal Academy, and the third is a reward for completing Quest 20 - The Agony and the Ecstasy.
The Scarlet Slayer
This costume is exclusive to the Definitive Edition version of the game. Once you make it to Angri-La, go to the shop and you will find a piece of equipment called the Battle Dress. Purchase it and you will have this costume for Jade.
You can find this costume for trade at the Octagonia Casino, where it costs 70,000 Tokens. If you don’t wish to spend tokens on it, the Merking enemy in the middle part of the game has it as its rare drop. You can find the Merking at night in Costa Valor, as well as in the ocean. Once you make it to the final part of the game, your only choice is via the casino.:::image-block-multi
The Warrior Princess
There are two pieces of equipment that make up this costume, both of which belong to the recipe, Pride of the Valkyries. You can find this recipe in the Fortress of Fear in the middle part of the game. If you happen to miss this, then you can find the chest with the recipe in the First Forest Whale Way Station in the final part of the game. In order to forge both pieces of equipment, you will need the following items: Gold Bar, Savvy Sapphire (x2), Brighten Rock (x2), Glass Frit (x2), Technicolour Dreamcloth, Artful Amethyst (x2), Slipweed (x3), and a Sainted Soma.
The Mega Medal Maniac
This costume is exclusive to the Definitive Edition version of the game. The costume is shared across all three female party members, as you only need one of the armors in order to unlock the costume. As you make progress in Tickington, you will unlock an area called Whealbrook. Complete the quest there, then go to Quester’s Rest afterwards, speaking to Sellma behind the counter on the right, to purchase the Uniforme Chic de l’Academie armor.
Once you make it to the final part of the game and gain access to Gondolia, head there and find the two merchant brothers. You can go back and forth between them to haggle the price of the Divine Bustier all the way down to 20,000G.
The Slinky Swimmer
In the final part of the game, go to Octagonia and head upstairs to the casino. There, you can trade 150,000 Tokens at the counter for the Hot Bikini item, netting yourself another costume.
The two pieces of equipment needed for this costume will require you to obtain the recipe, The Way of the War Goddess. This recipe is located behind the locked door on B9 of The Battleground, which requires the Ultimate Key. In order to forge both pieces of equipment, you will need the following items: Orichalcum, Savvy Sapphire (x2), Brighten Rock (x3), Sainted Soma (x2), Colourful Cocoon (x2), Artful Amethyst (x2), and Slipweed (x3).
Both pieces of equipment for this costume requires the recipe, Shine On, Xenlon. You will be able to get this recipe from beating the fourth trial of the Wheel of Harma in under 20 turns. In order to forge both pieces of equipment, you will need the following items: Gold Bar (x2), Spectralite, Crimsonite, Serpent’s Soul (x2), Saint’s Ashes (x4), Serpent Skin (x3), Kaleidocloth (x2), and Finessence (x3).
The Hare-Raising Suit, the piece of equipment needed for this costume is rewarded to you for defeating the superboss, the Timewyrm. This is a very challenging battle, so it is highly likely that this will be your final costume obtained in the game. While this costume makes an appearance in Jade’s Interlude, it isn’t registered as an actual costume until you gain it permanently, via the method above. The nice thing about this piece of armor is that it will always revive Jade whenever her HP reaches zero.