This is a Simona Corsellini long slip dress.
Elisabetta Dori
Marchesa
CourrèGes
Simona Corsellini
Stella Mccartney
Patrizia
Actualee
Solace London
The Andamane
Nenette
The Garment
Lulu & Rose
Chirico Store
Versace
Balmain
Ann Demeulemeester