NWT dress. Has stretch. Keyhole back. First 2 photos from Free People - Designed with a slim fit, the Free People Celia mini dress will literally make you dance no matter where you choose to wear it. - With its sweetheart neckline, the FP mini dress features long straight sleeves with ruffled details on the sides - This pull on dress has a beautiful cut out button closure at the back that makes this item super stylish.