Zimmermann Dress Size 0P - Please go to Zimmermann.com or look up the dress for true measurements. (I am 5’6” and I normally wear a 32B) this will not fit a size 34 and will be tight. 100% Authentic. Worn once to a wedding. Purchased new, did need to cut / alter the structural inside of the bust to fit a better so it is looser. The bust does not have any stretch. Only the inside was altered and it does not externally show. Zipper works fine but is a little tricky getting over / around the waist.