This off the shoulder bodycon dress is made from polyester. Size chart: Size S bust: 82cm/32.3" waist:74cm/29.1" hip: 88cm/34.6" length back 90cm/35.4" Size M bust: 87cm/34.2" waist: 79cm/31.1" hip:93cm/36.6" length back: 91cm/35.8" Size L bust: 92cm/36.2" waist: 84cm/33.0" hip: 98cm/38.5" length back92cm/36.2" Size XL bust: 97cm/38.1" waist: 89cm/35.0" hip: 103cm/40.5" length back: 93cm/36.6"