This Viscose, Nylon, Elastane Blend Dress Has An Open Back With Multiple Straps Crossing At The Upper Back, And Back Waist. This Is An Active Dress, It Does Not Have Undershorts. Black Dress With Strappy Corset Back, Black Dress With Corset And Strappy Back, Fitted Black Dress With Strappy Back, Black Stretch Mini Dress With Crisscross Straps, Black Halter Neck Dress With Lace-up Back, Black Cross-back Dress For Night Out, Black Cross Back Evening Dress, Strappy Stretch Dress With Built-in Bra, Fitted Dress With Built-in Bra And Cross Back