I believe these are what you are talking about?
They're for any binding really though, not just The Jesters. I would highly recommend selling your Jesters and investing in The Dukes if you're going to be doing A LOT of trekking though. From what I have heard from a lot of Colorado back country enthusiast's "they work but they're shit". But I'm sure if it's just for the quick hikes they'd do the job.
Let me know what you think of them if you buy them!
they would see jenifa and be like "ohhh our long lost ailen son who was too ugly to stay on r planet, what a small universe"