Useful for parents with their hands full, our Hegen bottle is the world's first feeding bottle with a unique one hand close. No screw threads, just Press-to-Close and Twist-to-Open! Preparing a bottle has never been this simple. Hegen's revolutionary, practical and multi-functional designs represent a quantum leap in baby feeding. Designed to closely mimic a mother's lactating breast, our elliptical-shaped and super soft silicone teat minimises nipple confusion so combining breast and bottle-feeding is seamless. The off-centre teat allows your baby to feed in a natural upright position, similar to a position in which babies are nursed to reduce the risk of milk back-flow and the resulting mid-ear complication and colic; while the built-in anti-colic air-vent further prevents bubbling of milk and saves precious nutrients from oxidation. Our bottle's wide mouth and smooth lines with no hidden ridges make cleaning fuss-free. Air-tight and leak-proof, our first-of-its-kind soft square shape makes it easier for your baby to hold and is also ergonomically designed to save space in your home and bag. Hegen PPSU range is made of food-contact grade and NSF certified medical grade material. PPSU is widely used in the manufacturing of medical appliances due to its superior toughness and high temperature resistance. It combines the advantages of both glass and plastic materials ; BPA-free and lightweight. PPSU is naturally amber-coloured and contains no artificial pigments. Simply swap adapters, feeding collar and storage lids to express, store and feed in a single container with no wasteful transfer of milk, making every drop count! A Hegen is both aesthetically pleasing and inherently functional!