100% Mulberry Silk Breathable & Lightweight Lightweight & Comfortable Main material: 87% nylon + 13% spandex Cup lining: 95% silk + 5% spandex, comfortable and breathable Fixed adjustable straps: reduce shoulder pressure Nylon-coated underwire: flexible and supportive Memory-foam-padded cups: adapt to every curve Tagless design: for added comfort 3 rows of hooks: give even in-between sizes a just-right fit Size Chart（NY182105） Size Under bust girth The fitted bust cap The fitted bust size M 25.9