Fox print dress

I bought this on Top Vintage, size 18Uk. Just strange sizing. I have big hips and I thought this would be a-line but the bottom is pretty straight (too tight for my liking). Brand new with tags though! Side zip closure, pullover style. Pockets Viscose shell and cotton lining Bust is 21” Waist is 18” Hips are ~28” Length is ~43”