Not sure if this has been mentioned before, noticed on the Team Roshe marketplace on Facebook, the black Flyknit Roshe Run from the UK has a different product/color code than the US midnight fogs!
677243-005 was the model # I got from END whereas 677243-001 was the model/color code from US retailers such as Finishline.
Here's the box photo from the UK:
(grabbed from Facebook, credit to "Al Vin")
Apparently the sole from the UK is more of a "true black" and not a greyish hue. Didn't really notice with mine as I had no US version to compare with.
Cheers!