Shell: 100% silkContrast: 60% cotton 40% nylon. Dry clean only. Shoulder strap to hem measures approx 33"" in length. Keyhole back with button closure. Contrast lace trim. MASO-WD284. M 9838. Launched in 2002 as a diffusion from designer Michelle Mason's eponymous label, Mason is a youthful collection of playful garments inspired by modern shapes and classic attire. Her line offers sweetly draped and embellished blouses, tanks and tops in colors that range from muted greys to vibrant pinks. The Los Angeles-based designer has become a well known name among stylish red carpet regulars like Angelina Jolie, Cameron Diaz and Natalie Portman and fashion bibles like Elle and Vogue have listed several of the Mason's designs as wardrobe essentials.