Trixxi, Black Formal Dress. Size Medium. Self: 92% polyester and 8% spandex. Lining is 100% polyester. Gathers at the waist for a slimming effect. Black mesh hangs below the hem. Pull on dress. Tank type straps. Gently used. No holes or stains. Smoke free home. Armpit to armpit measures 16". Shoulder to hem measures approximately 41".