Size 00 but would fit bigger sizes too (very much at least size 0), my mannequin is size 6 and the dress zips up up to the chest. Listing is for size 00- you will receive size 00 Removable slip Armpit to armpit 16” Waist 12.5” Hips approx 17” Dress fully zips up, just doesn’t fit my mannequin Shell 100% nylon