NWT Denim cropped top with bustier detail Sz S / M

Brand new beautiful blue denim crop top with thin straps and zippered back. A must have piece for spring/summer season. Gorgeous bustier detail without the underwire There is very slight stretch from the ruched back by the zipper. The rest of the denim is thick & nonstretch. Brand new but no size tag. I estimate it to be more of a S eventhough tag says M. See measurements below: 15.5" PTP 8" length from top to bottom (measured from center of item) 15" from top of strap to bottom of the item. Feel free to ask any questions.