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 Beige Stretch Sports Bra With Built-in Bra, Fitted Nylon Seamless Sports Bra, Solid Seamless Fitted Sports Bra, Solid Color Seamless Fitted Sports Bra, Fitted Nylon Sports Bra With Adjustable Straps, Compressive Nylon Sports Bra With Adjustable Straps, High Stretch Nylon Sports Bra With Removable Pads, High Stretch Nylon Seamless Bra, High Stretch Seamless Nylon Bra