Gorgeous Lace &; Polka Dot Tulle Sweetheart Neckline Mermaid Wedding Dresses with Detachable Jacket Fabric: Lace &; Polka Dot Tulle Details: The out layer of the dress is made of lace and polka dot tulle. and the lining is made of saitn. It features the sweetheart neckline and mermaid silhouette. The whole dress is embellished with venice lace and beadings. The detachable polka dot tulle jacket with beaded lace appliques decoration adds more glamour to this dress..