You need a few things actually...
Haze Panther pelt
Vellium boning
Yew Leaf Tannin
Boot Pattern
a DAMN high skill in tailor and a truckload of luck on top of that.
Haze Panthers are usually invisible MOBs that wander the Wakening Lands, so tracking and see invisible would make this mch easier, otherwise I guess you could hang meat from yourself and run around hoping to get attacked by them.
The Yew Leaves simply spawn on the ground and can be hard to spot unless you are right on top of them.
Good Luck fellow rogues, I plan to makes these babies myself someday.
A Rogue