Amazing tuxedo dress! I’m unsure on the designer but think it may be Eliza J or Adrianna Pappell. Purchased from a Bloomingdale’s return pallet and have not worn myself other than trying on. The tag is missing but fits a size 12 comfortably. Satin sash/belt is missing but can be replaced on Amazon. Material content 96% polyester 4% spandex. Comfortable stretch throughout the dress.