The Closer to Nature® milk storage bags offer safe and convenient breastmilk storage. Pre-sterilised for ease and safety Closer to Nature® milk storage bags are pre-sterilised, allowing mum to pour expressed milk directly into the bags without the need for sterilising in advance. Each bag holds 12 fl oz /350ml of breastmilk. Safe and secure The milk storage bags have a double-fastened seal at the top, to ensure none of your precious breastmilk can leak or escape. The bags can be securely laid flat in the freezer for complete convenience. Easy transfer The milk storage bags have a gusseted base, so they can stand up securely. This means you can transfer milk more easily with less chance of spilling your liquid gold! Easy Labelling You can write directly onto each bag your name, date and volume, which in those early days of breastfeeding means one less thing to remember.