Even for black tie
Yup! Just like everyone else said: beautiful material is substantial, and won't wrinkle in a suitcase. The sleeves fit like gloves all the way up to the arm pit. Pretty ruching in the waist, and no underwear lines. A simple small pin will help you shorten the "v" neck, if you need it. The navy blue is pretty enough to be formal. XS size is still somewhat lengthy, and fits true to my size 2 or 4. Sexy and comfortable.