By pumping and feeding breast milk you can do a lot to support your baby's development. If handled correctly, pumped breast milk contains all the natural vitamins and nutrients your baby needs. Available in 150ml and 250ml versions, these easy-to-use Medela bottles let you precisely measure your milk with millilitre and ounce markers. These handy BPA-free bottles are compatible with all Medela breast pumps so you can pump, store and feed milk using one versatile container.