Flemme de traduire, les images devraient suffir si tu comprends vraiment rien. (Dis le dans le cas contraire)
Jasper Crest :
- 10 Anolian Skins
- 10 Black Bear Skins
- 3 Dragon Skins
- 5 Yarn
Step #1 :
Visit Lord Grimith in the Prontera Castle. [ prt_castle 82,37 ]

Step #2 :
He sends you to the Tailor [ prt_castle 120,61 ] in the same room.

Step #3 :
He'll send you to the Supplier [ prontera 105,96 ] at the Romance Spot.

Answers for the Quiz :
Yarn is dropped by Dancing Dragon
Anolian Skin is dropped by Aligators
Black Bear Skin is dropped in Gonryu
Dragon Skin is NOT dropped by Petite
After that he will ask you for the items and send you back to the Tailor in the Prontera Castle.
Step #4 :
The Tailor will give you a smooth paper and send you to Designer Ithilwen [ prontera 255,168 ] in Prontera. He's a little bit to the south of the East-Kafra.

The guy will take the collected items, give you a non-slotted hat and send you back to the tailor in the Castle.
Step #5 :
Go back to the Tailor, get your Jasper Crest and then visit Lord Grimith again for 1 OBB
PS: merci Rocards or w/e!