Boots and Stockings in the DM Gadomar Promo Shots
The ones in the 4th thru 6th shots down.
It's the Monaghan outfit, but I don't think those boots are the same. Monaghan looks to be more like thigh high boots.
The fishnets look like the ones from Magus (which are leggings but since the books are fairly tall, they look good. Buy I suppose they could be with the boot model.