The top part of the costume snaps to the bottom using a series of clear snaps. The whole garment is fully lined.
The white skirt consists of 2 layers sandwiched together which gives it the semi-transparent effect without it being too see-through. It is a relatively ridged material, and the application of the gold trim that edges the skirt hem is well done. This skirt is attached to the rest of the dress to make putting the costume on simple.
The white under-layer is made of a stretch satin. It zips on with an invisible zipper. A lower quality costume may have opted to install a normal zipper or not include one at all since the seam is not visible when the whole costume is worn, but even the under-layer has been tailored to be easy to wear while still being accurate to the original character design.
The cut and design is so accurate, in fact, that wearing it to an event might require you to make some considerations for modesty!