Check out this petite two-piece knee-length jacket party dress by R&M Richards. The two-piece navy blue semi-formal dress has a sheer chiffon jacket with rhinestone-trimmed sheer three-quarter sleeves. Remove the matching jacket and you have a sleek petite sleeveless navy blue career dress with matching rhinestone trim at the scoop neckline and a hip-skimming skirt that flows to a modest knee length. Perfect for the office, weddings, and formal luncheons, this petite two-piece knee-length jacket party dress is a classic style that is surprisingly affordable at under $100.