Lunavie Seamless Nursing Bra is made with microfiber which has special treatment with anti-microbial liquid by Ultra Fresh. This is to prevent the growth of bacteria and also prevent formation of unpleasant odour. It is luxuriously soft & wire-free for added comfort. Moreover, it stretches up to 3 cup sizes to accommodate milk-filled breasts. At the same time, it gives better support with adjustable shoulder & back straps with 3 hooks bra extender.