Say Goodbye to Colic Issues! Nourish Teeny-Weeny with unbeatable convenience! Global No.1* Nursing Bottle Brand, trusted by mums all around the world High-Quality Bottle Material:Made with T-Ester, an innovative material that is developed and produced in Japan, the first ever used in nursing bottles. With premium glass-like clarity, it is UV sterilizer-friendly Improved Softness:Smooth silicone nipple flexes and mimics a mum’s breast which results in easy latching and seamless breast-to-bottle transition Latch-On Line:Perfect solution for latching issues! It guides the mother and the baby in an appropriate latching position Anti-Colic System:Air valve design on the base of the nipple which allows a constant flow of feed with less ingestion of air; designed for tiny tummies. Easy-to-clean:Transparent body for perfect and convenient squeaky cleansing. BPA and BPS-free material makes it safer and healthier for babies Based on extensive research on feeding, the 3 key factors are involved in a baby?s natural sucking behavior: