From Boston Proper Website: Transition to weekend-casual style in this sleeveless collared zip shift dress, designed in an easy-stretch knit fabric that keeps you comfortable from day to night. Content & Care Sleeveless Exposed front zipper closure with O-ring pull Bust darts Easy, pullover style Unlined 95% polyester/5% spandex Machine wash Imported Size & Fit Effortless: easy fit with slight shaping Mid-thigh length: 35", based on size small Sizes XXS(0), XS(2-4), S(6-8), M(10-12), L(14-16), XL(18) Fit note: Follow our size chart for the best fit. If between sizes, size down.