NWT - NEW PHOTOS - Free People Audrey Floral Maxi Dress - Size SMALL - Copper, Rose and Beige - New Condition I measured from the inside and out and PTP on the outside was approx 15” from the inside 16”. So I’d half it The great thing about this dress is that the lacing in the back is very forgiving. I’m 5 4 1/2” 120 and it swallows me. But I could lace it tight enough to fit, it would just look sloppy, if that makes sense.