Size XXS = UK 4, XS = UK6, S = UK8, M = UK10-12, L = UK14-16. Model wears a size S. Boat neck. Sleeveless. Concealed zip fastening. 90% rayon, 9% nylon, 1% spandex. Dry clean only. Due to brand policy, Herve Leger returns will only be accepted if the large paper tag is present and intact. Herve Leger fit tips: Dresses with thinner bandages and those with sequins or print tend to be tight so we recommend ordering one size up. Dresses with thicker bandages tend to stretch more easily so we recommend ordering one size down. Dresses vary in length so customers are advised to check the image of the dress on the model when buying online. Try on your Herve Leger dress with seam-free underwear to guarantee a streamlined look.