MATERIAL: 70% nylon, 30% spandex. FIT: True to size | Size up if inbetween  DESIGN: This backless romper was made for the It girls! Perfect for showing off all your hard work at the gym. It’s bold, flattering, and guaranteed to boost your confidence. Trust us—this isn’t just a want, it’s a total need for your closet! MODEL: The model in the first photo is 5'3", with bust size 34, waist size 27, and hip size 37, and wears size XSmall.