This black Preen by Thornton Bregazzi Jayda puff sleeve taffeta dress is crafted from silk and features a square neck, flared skirt, slit to the front, back zip fastening, mid-calf length hem and a mini bow to the fitted waistline. Everybody needs an LBD in their lives. Correction. Everybody needs a lovely black Preen by Thornton Bregazzi dress in their lives.