We bought this dress for prom, excited for the different ways it could be worn.
By size, she should have had a size XXL so bought XL. It was just a bit big at the waist.
We just couldn't wrap it in such a way to cover the bra she absolutely needed to wear.
One video we watched showed the  (very slender) model wearing a matching tube top.
We were limited on time so opted for a black strapless bra since our dress was red and the color was difficult to match. It wasn't optimal but the best we could do under the circumstances.  Since then we have found the dress sold with the matching tube top which we would recommend.
Some have said the weight of the material was light and heavy. It was not see through (we got red) and definitely not light. The red was not the true blue red we expected but had more orange in it.
My daughter loved the twirl factor.