NWT Open Back Tulip Skirt Ruffle Red Sundress. 51%-70% Polyester. Sexy, comfortable and slim fit. Women Summer Sleeveless Ruffle Evening Gowns Dress is suitable for women to wear in wedding, date, Bridesmaid Prom, party, club vacation, night out, and Graduation Party wear. This gorgeous mustard colored midi dress with an open back style and secure back strap keeps you securely and tightly held in, making every curve look perfect. an absolute spring and summer must have. Lipstick red is gorgeous!