What evolution !: I love the bottle systems, pacifier and dosing Tommee Tippee, I have chosen for my daughter after breastfeeding, comparing 3 different brands! There are 13 years, my big boy, I used the traditional elongated narrow neck bottles with brown nipple: the traditional method of the time! I remember that they were falling constantly because of poorly thought out this form, and my baby thoroughly moistened her bibs, then he did not need before weaning from breast milk! Bottles Tommee Tippee have a wide stable base well, a cute look, teats with the shape and width of the closest womb (not like the Avent brand, too small for a baby's mouth accustomed to taking in ). For use with ingenious small metering boxes that are placed directly into bottles, thus isolating the water from milk powder already inserted in the bottle: a system that can prepare the bottles in advance and take them everywhere, without worrying about the right temperature preservation, as would have been necessary with bottles containing already preparing milk. I love!