MINT & WHITE BODYCON DRESS-(Fits like a size small

Bluenotes Mint & White Bodycon Dress Medium Stretch, good thickness Size M but fits like a size *Small*. Perfect Condition but no tags Measurements in Inches: Flat Length from shoulders- 26" Flat Waist Width- 12" Flat Thigh Width- 13" 95% Cotton 5% Spandex All my garments are sent out from a clean environment and are washed or dry cleaned beforehand