The Triumphant Rebirth of Balenciaga Couture - The New York Times
File:1957 Balenciaga chemise or sack dress, black bouclé wool 01.jpg - Wikimedia Commons
Remembering Nicolas Ghesquière's Revival of Balenciaga | AnOther
A small history of the SACK dress and its variants (COCCOON, BABY-DOLL, BALLOON) - Design & Fashion blog
Here is a Cristobal Balenciaga sack dress from 1955-1956. This french dress is made of wool. The sac… | Balenciaga dress, Fashion history, High fashion street style