GIGI - Opal Silk Jacket. SIZE & FIT:. Relaxed fit single breasted jacket in lightweight silk. Lightweight fabric for comfortable fit. Model is a size 12UK and wears a size 2. Height 5ft 9in/175cm, Full bust 36-37in/90-94cm, Waist 30in/74-76cm, Hips 40in/98-102cm. FABRICATION:. Natural high quality luxe ivory silk. 100% Silk