This should be the last outfit you need for the achievement.
First you must get every other outfit in the game for ALL characters.
Then you switch to “2D Mode” at any Church or Priest and play from the chapter “A Dark New World”
Make sure to make a different save for 2D mode as you will not be able to return to where you left off in 3D
Play through until you get to Jades quest.
Achievement unlocks when you regain control of Jade after you meet Booga.
The reason this works is because all equipment carries over into 2D and the Outfit Booga forces Jade to wear IS the Hare-Raiser outfit, so if you have have every other outfit unlocked before doing this, the moment you are in control of Jade again it counts as a full set, then you should be awarded with the achievement.
This is all about DRAGON QUEST XI S: Echoes of an Elusive Age – Definitive Edition – Jade’s Hare-Raiser Outfit The Easy Way (Dedicated Follower Of Fashion Achievement); I hope you enjoy reading the Guide! If you feel like we should add more information or we forget/mistake, please let us know via commenting below, and thanks! See you soon!