Reformation Melvina Velvet Dress in the color Forest, and it is available in size M. NEW WITH TAG Style and Fit: This is a maxi dress, described as super comfortable yet sexy and elegant. It has ruched details on the side, a v-neckline, and spaghetti straps as seen in the image. Material: Reformation velvet dresses are typically made from a soft, non-stretch velvet with a medium pile, often a blend of rayon and silk.