http://en.wikipedia.org/wiki/St._Croix_(clothing) http://www.stcroixshop.com/stcroix/default.asp?s_id=0&
An interesting mystery! A lifetime's supply of Issey Miyake would surely obviate the need to by them from this random shop, right? Am I missing something?
For what it's worth, I hope they come from Miyake, who's a genius in his own right.
Bonus: another person who is staggeringly good at her job, wearing a black turtleneck: