The dress is a bodycon with sturdy material to keep shape. Zipper is on the back and goes from the top of the neckline to about 8 inches from the bottom hem. I included the measurements provided on the lazy oaf website for this item, though you can message if you want more details! this item is crosslisted! please message your interest before purchase:) 97% Cotton and 3% elsastane Size: 10 UK ; 6 US (small) - bust: 35 in - waist: 28 in - hips: 37.5 in Brand: lazy oaf