Designed to preserve breastmilk nutrients. Warms 2-3 times faster than standard bottles Bottles stack easily to save space and track pumping order. Anti-slip silicone bottom prevents tip overs Easy to take apart for thorough cleaning. Advanced, triple channel venting system designed to reduce colic Unique shape allows babies to self-feed at a younger age. Extra soft silicone nipple Breast pump adaptor included. BPA and Phthalate free Nanobebe Breastmilk Feeding Bottle Nanobébé is the first feeding bottle designed to protect precious breastmilk nutrients which are so essential to baby’s health. Thanks to its unique geometry and increased surface area, the bottle cools quickly, reducing bacterial growth and warms quickly at safe temperatures, so you can promptly feed your hungry baby without exposing breastmilk to nutrient-damaging temperatures. In fact, the nanobébé bottle warms up 2-3 times faster than standard bottles. The included breast-pump adaptor means you can express breastmilk directly into the bottle, and then store it in the freezer or fridge. The bottles are stackable which helps track pumping order and saves storage space. Finally, nanobébé’s innovative breast-like shape allows your baby to hold it on their own and self-feed from a much younger age.