Weird, I've seen so many stores carry Dries' shoes this season, but not these particular ones. Anyway, here is a list (none of the stores had them out but you can try your luck because sometimes they come in different shipments).
Barneys (NY/LA/CHICAGO)
Jeffrey(NY/ATLANTA)
OTTO TOOTSI PLOHOUND (NYC)
GIMME SHOES (SF)
CIELO (SF)
Good luck.