Sau Lee Heidi Gown in Cobalt. Size 4. Features hidden back zipper closure, one shoulder styling with frog knot accents, sheen satin fabric with side seam slit, maxi length. 75% acetate, 25% polyester. Style S22D34. NWT / New with tags. Tags: revolve, cocktail, evening, formal, special occasion, event, party, night out, gala, ball, dance, prom, blue, purple, black tie Waist: 13" Length: 56" Measurements taken flat and approximate.