Like the black cat suit (and the Buck Rogers reference). What is it called?
It's called Concealed Bodysuit Armor
and I think it's new with the latest pack. Bought the whole lot for a steal off the GTN and then added it to collections.
Out of the box it is shiny black with sort of cream-coloured sleeves (notice the arms aren't made of the same shiny material as the rest of the suit, unfortunately). You need either black/black or white/white dye to get the single colour catsuit effect, otherwise it looks more like a waistcoat kind of deal. That is unless there are other dyes with two of the same colour. Haven't run into any myself.
The boots the character in the black catsuit are wearing aren't the ones that come with the suit, they have more of a puttee/legwrap sort of thing going on (like the ones Luke wore in the original Star Wars film).