A short sleeve dress by belgian designer Dries Van Noten, made from a paisley patterned, cream silk grosgrain fabric with a slight sheen. It is open at the neck with two tapered ends, designed so the neck can be adjusted / tied as desired.

Note too that it may be possible to tie the neck in a manner more elegant than I managed in the pictures pictured (bite off however much you think you can chew I suppose, my chewing is rather pedestrian).

Size 40 (IT womens)
Check measurements to confirm fit
All measurements taken flat

Shoulder width: 44.5 cm 
Width (at underarms): 57 cm
Waist: 57.5 cm
 Length: 102-118 cm
Sleeve length: 21 cm
Hem width: 58.5 cm

100% silk
Made in italy

Dries Van Noten cream paisley patterned silk grosgrain tie neck dress - size 40