Strapless Plunge Push Up Bustier. For a classic silhouette, slip into the Essentials Seamless Hidden Wire Bustier. Wear it alone to create a sexy figure or slip into a dress to slim your waist and boost your breasts. Seam free Contoured bodice hugs along hipline without rolling. Boned side and back placement for comfort and versatility. Silicone facing elastic to ensure fit.