This is a black Givenchy Asymmetrical Short Draped Dress in size 38 FR. 

Self: 58% viscose, 42% acetate
Made in Italy. 
Dry clean only. 
Unlined. 
Halter neck with front toggle fastenings. 
Hidden back zip closure
Threaded cord detail with toggle fastening at waist. 
Draped and gathered fabric throughout. 
Loose strap details with leather trim
Silver-tone hardware. 
Manufacturer Style No. BW214W10F4.

1385