Michelle Mason Bustier Top in Blush. - size 0 (also in 4) Michelle Mason Bustier Top in Blush. - size 0 (also in 4) Self: 95% viscose 5% elastaneLining: 100% silk. Dry clean only. Adjustable criss-cross shoulder straps. Underwired cups. Exposed back zipper closure. Imported. MASO-WS171. M 2877. 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.