Cimary Women's Nursing Tank Sleep Bra For Nursing and Maternity Material 95% modal and 5% spandex Easy, pull-aside, breastfeeding access. Wireless. No clasps or hooks to mess with. Move comfortably with it day or night, no itchy elastic chest bands or underwire. Breathable, ribbed gore stretches to accomodate the normal bust size fluctuations nursing moms experience Easy pull down nursing access it really perfect for Nursing, especially during pregnancy and breast-feeding