Sounds like a special order to me. in a previously unavailable sheepskin.
I realize you're the "everything but Shinki sucks" guy and this is pointless, but there's a difference between a store placing an order for a stock of things and an individual buyer wanting to do the same.
Schott no longer does individual custom orders, but 316 does a special collaboration Schott jacket every year. That's not a double standard–that's just… being a store.
Likewise, Field is doing this collaboration as a test run for sheepskin jackets, which will eventually be offered.
It's hard to imagine you aren't being willfully obtuse here.