Fantastic thread; the reverse of a garment is often the most interesting part.
I must have posted these in a hundred different threads I'm obsessed with the backs. (I hope we can post other pieces apart from dresses? ).
Click for HQ
Narciso Rodriguez F/W 11-12
Giambattista Valli F/W 08-09
Cue poor quality GIF:
gif made via gifsoup using youtube video