Michelle Mason Bustier Gown in Pink. - size 6 (also in 2,4) Michelle Mason Bustier Gown in Pink. - size 6 (also in 2,4) Self & Lining: 95% silk 5% lycra. Dry clean only. Fully lined. Adjustable shoulder straps. Hidden back zipper closure. Front slit. MASO-WD361. M 9001B. Launched in 2002 as a contemporary diffusion line from Los Angeles based designer Michelle Mason's eponymous label, Mason is a fresh and youthful collection of sophisticated garments inspired by modern shapes and classic silhouettes. Femininely draped gowns and embellished detail breathes life into their blouses, gowns, sleek tailored trousers, and more.