The 3.0 has been updated with a stretchier band and smoother underarm area to provide a more comfortable fit. Comfortable enough to sleep in, supportive enough for everyday wear! An all-in-one nursing and hands-free pumping bra made with buttery soft fabric that is still pretty supportive for everyday wear! It's wire-free, with no zippers, clips or hooks to keep you comfortable all day long. Even wear it for sleeping so you can pump and nurse with ease during those night feedings. Machine washable and dryer friendly. This bra is compatible to fit all standard pump flanges, including Medela, Spectra, Lansinoh, Freemie, Ameda, Hygeia, Philips Avent, Motif, Evenflo, and more.