Plus size Wedding Dress

Bought 2 years ago, worn for the wedding and then immediately professionally dry cleaned and boxed and has been in storage (sealed) since. Dress size 20W but I was about a 16-18 in street clothes when I wore it. Zipper closure. Jeweled belt was bought separately and sewn to the sides of the dress by a professional tailor. The belt ties with ribbon in the back but is secured in front and part of the dress now.