Michelle Mason Asymmetrical Halter Neck Top in Navy. - size 4 (also in 8) Michelle Mason Asymmetrical Halter Neck Top in Navy. - size 4 (also in 8) 100% silk. Dry clean only. Ruched detail. One shoulder styling. Item not sold as a set. Made in USA. MASO-WS190. M-2946. 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.