Since several reviews said that this dress ran small online, i decided to go to my local retailer store to try this on in person. i am 5"6", 120 lbs. and normally a 0 or 2. the 2 worked perfectly. i loved the red version online but thought the green was better for me in person (the red is a tomato red and was more overpowering on my fair skin). the green also has light blue in the detail print so maybe good if you have blue eyes. no problems with the zippers on the ones i tried at the store.