Ah, thank you.

Now, in looking at their items (this one here cgi.ebay.com/Light-Blue-....m153.l1262) it doesn't seem like it's good quality but for that price you could certainly fix it up when you got it. I looked at the close up pictures and the back of the bra straps aren't covered and it's clear it's just a regular bra that it's built on, I would say it would be a good beginner or hobby costume as is, but I would take the time to completely finish/cover it to be sure things don't fly off.

It looks like these are a lower quality version of the Necklemann's costumes which are made in Brazil, so plastic beads and sequins sewn on a lightweigh fabric base / bra. I would get one just to make a better more sturdy costume out of it, that's a pretty good price to pay for all that beading...