Infinity Raine Racerback Tunic Size Small NEW

Infinity Raine White Racerback Zipper Pocket Tunic. Has a tiny black mark (see pic) when I received the item. NEW WITH TAGS Size: S Approximate Measurements: (flat lay) Length: 28.5” Pit to Pit: 18” 95% rayon 5% spandex Please review the actual measurements as they differ from the size on the tag