A fitted slip dress in a quality fabric reads as intentional and polished for dinner dates. The simplicity means the fabric and fit are everything. A silk or satin slip dress skims the body without clinging to it. The neckline matters because there is nowhere for the dress to hide. A simple round neck or a bias-cut neckline in a jewel tone or black feels sophisticated. Layer it with a blazer if you need coverage or wear it alone if the occasion and your comfort level allow it. These are the fitted slip dresses that work because they do not try too hard. Look for dresses with a smooth back and a hem that hits at a length that works for you.