Gianni bini little black dress XXL fits like XL

Gianna bini little black dress with ruffle hem. size XXL I normally wear a 12-14 in most brands and this fits perfect. So I'd say this fits more like an XL no stretch bundle and save on shipping! also have it in white which I will be posting soon From GB, this dress features: Square neckline Sleeveless styling Tie shoulder straps Zip back closure Ruffle hem Mini length Linen/rayon Cotton lining Machine wash; tumble dry