Reformation - Champagne - Size 6

Reformation - Champagne - Size 6 Worn once as a bridesmaid. It’s bit see through so I got a slip made for it. I also cut the tag off for the same reason. Would fit a size 4 or 6 best. For fit reference: I am 5ft 10in, 160 lbs, 34B and currently a size 8 in most dresses. When I was a size 6 this fit me a tiny bit snug but the fabric in the front went to the floor. Recommend for a large size 4 or a small size 6.