Halter Midi Dresses & Windsor Halter Lace Midi Dress Halter Midi Dresses & Windsor Intimates & Sleepwear Halter Lace Midi Dress Queen Size Nwt Poshmark. Material: 67% Polyester, 33% Spandex Expertly crafted with delicate lace, this halter midi dress is the perfect blend of elegance and style. The halter neckline accentuates the shoulders, while the midi length adds a touch of sophistication. Perfect for any occasion, this dress will make you feel confident and beautiful. Sleeveless V Neck Button details Rufle Halter Midi length *Due to different lighting, there may be a little color difference in the clothes.