14" relaxed armpit to armpit to 19" fully stretched - its front drapes over chest/bust - its back has elastic - if 38" is its max, you will have to allow some room - so would safely say this a Medium 34" It is 44" in length (armpit to its hem - quite long from bust on down); spaghetti straps Its sweep is 52" (very Hollywood, regal and elegant) It is missing its brand/size label - looks like a 70's Lorraine night gown to me; In excellent condition - please note a couple white spots in picture #6, which should come off in a wash; Lovely cross of plum and violet in color with serpentine lace panels all the way around; Thank you. 719a Thank you for checking out my items. Please note that IF there's nothing in the description of this listing other than this note in blue, it may be close to impossible to find the item. It is in the description, I mark where the item is inventoried. There have been occasions where the descriptions have disappeared and all there was left was a blank space. Please keep this in mind. If you see something you'd like and there's no description, please message me first to look for it and make sure that I can find it for you. Thank you for being here and for your continued support over the years. I appreciate you.