A fitted vertical stripe dress creates maximum lengthening effect because the stripes have nothing to interrupt them from waist to hem. The fitted silhouette means the vertical lines are unbroken which maximizes the optical lengthening property of vertical stripes. Fitted dresses work best when the stripes are clearly visible against a solid background color. Cotton blends and lightweight knits that have stretch handle fitted vertical stripe dresses well. The stripe width matters in a fitted dress because wider stripes read as more bold while narrower stripes read as more subtle and optical. A fitted vertical stripe dress works in both casual and more polished contexts depending on the stripe choice and color combination. These are the vertical stripe dresses that use fit to amplify the optical lengthening effect.