The outfit includes a dress (you can hide loins to turn it into a simple top), a panty, and shin-guards to round out the look.
The clothing items include built-in morphs for all of your main Genesis 2 Female(s) and lots of body shapes.
The dress has some collar morphs for various look and many loin morphs to set it for sitting and other poses where the rigging may not give perfect results. The built-in loin controls will save you time. You don't have navigate to each of loin parts, but can pose the back and front loin from Posing Tab easily.