A snazzy hood and tight pants - what more could you ask for?
The Witcher 3: Blood and Wine - Grandmaster Feline Gear Scavenger Hunt
This quest is acquired by quizzing the grandmaster smith in Beauclair about Feline school upgrades.
The first stop on this quest doesn’t have a fast travel marker. You visit it during Knight for Hire, but apart from that the easiest way to locate it is to head north from the Trading Post marker (or just follow the quest objective from your nearest fast travel point).
If this is your first visit, you can enter the compound by circling around it to the rear wall opposite the main gate and climbing some rocks. Jump up to the top of the wall and drop down.
Again, if this is your first visit, the area is full of bandits who’ll need to be put down. Once they’re clear, search their bodies and nearby loot containers until you find a key; it opens a door clockwise of the main gate. Search the painting inside for one schematic and read the letter you find.
Your next stop is this Arthach Palace Ruins, a short stroll from where you found the first schematic. Unfortunately this is a Hanse Base, so if you’re not well-equipped and levelled up it’s a tough prospect. You need to get almost to the top of the compound which means fighting through loads of bandits and dogs. Look for a chest on a bridge before the boss arena, and read the letter you find with two more schematics. Finish clearing the Hanse Base if you can, or leg it otherwise.
The third dungeon is the Pits of Brume, which are pretty much directly south of Arthach. There’s nothing inside but a couple of Archespores (although it’s on the path to a nearby Witcher Contract target, so be a bit careful how you wander about). The final schematics are in the far end of the cave, by a campfire and a patch of wolfsbane.