AURELIA Strappy Backless Maxi Dress (Bronze Silk Crepe) Zoo Label Lulus Dresses Lulus Blush Pink Prom Bridesmaid Wedding Formal Backless Strappy Maxi Dress Vintage Strappy Backless Maxi Dress Etsy. Features: Backless Sheer: Opaque Stretch: Slightly stretchy Body: Not lined Material composition: 95% polyester, 5% elastane Care instructions: Machine wash cold. Tumble dry low. Imported Product measurements: XS: front length 57. 3 in, hip 32. 4 in, bust 25. 7 in, waist 22. 6 in S: front length 58. 1 in, hip 33. 9 in, bust 27. 3 in, waist 24. 2 in M: front length 58. 9 in, hip 35. 5 in, bust 28. 9 in, waist 25. 7 in L: front length 60. 1 in, hip 37. 8 in, bust 31. 2 in, waist 28. 1 in