Our milk collectors atre pure silcone hence friendly to the skin and  baby.Comes with protective case making the collectors portable and easy to carry. Milk collector has been a savior for thousands of busy, breastfeeding mothers.  The Milk-Saver collects the milk that is leaked on your non-nursing side as your breast milk lets down. Once you’ve finished your breastfeeding session, simply transfer the collected milk into storage containers wear the Milk-Saver while you are not nursing will catch additional leaks that can turn into valuable ounces plus prevent milk stains on your shirts!