After a month of breastfeeding need to spend a little over arises. But still have to find the bottle system which disturbs as little as possible the baby: nipple-like womb so as to rotate the breast and bottle, not too soft nipple for baby does not feel that this is more easy to suckle from a bottle and that within a practical side not to take the lead. The Avent Natural system responds to all this. Q Here we have a bottle Natural PP Elephant Girl (the decor is nice, remains to be seen whether it will in time with repeated washing). 260 ml, either from birth (1 month + pacifier with two small holes). Honestly it may be cheaper to buy directly in 330 ml bottles by changing the teats. It has a large very soft and flexible teat which mimics the shape of the breast, which facilitates breast / bottle feeding alternately. There the cells that allow the nipple do not crash during feeding. But common sense, it is better that it is the father who gives the first bottle, especially when it comes to breast milk. Baby does not understand why his mom offered him the bib instead of her breast and may refuse to drink or screw up completely. At least dad is not feeling milk and baby drink readily accepts! I am in my third child and I speak from experience! Very important, I Advent breast pump to the range: good news, the neck "natural" is identical to that of the "classic". This means that I can screw the bottle on Natural breast pump Classic! Anti-colic system with double valve: baby does not swallow air in principle. Easy to hold (the bottle is narrower in the middle), as well as for parents with small baby hands later. The wide neck baby bottle for easy filling and cleaning. The bottle contains only a few parts for quick and easy assembly. This bottle is made of plastic and contains 0% BPA.