Reformation Casette Silk Dress in Aura Lavender Purple Open Back Cowl Neck Size 4 Reformation brand light purple silk high neck dress with an open back. Called the Casette Silk Dress in the Aura color. 100% silk, unlined, very lightweight. Open back with the straps crossing. Great for bridesmaids, guests at weddings, and other formal events. The thing you're looking at right now is made with 100% silk. Delicate, breathable, and feels like you're wearing nothing. - Designed to be fitted throughout. - Non-adjustable straps, cowl neckline . - Side ruching. - This is a lightweight silk charmeuse fabric. - 100% silk. 0668-17