The Kiinde Active Latch Silicone Baby Bottle is designed to provide a seamless transition between bottle and breast. Its unique gas-eliminating feeding design features a collapsible silicone inner sleeve that helps eliminate gas-inducing air as your baby drinks. This eco-friendly bottle is easy to clean, as the silicone sleeve can be flipped inside out and is safe for boiling, sterilizing, microwaving, and freezing. The bottle includes two medium flow Active Latch nipples with leak-proof snap-on covers, ensuring a mess-free feeding experience. With no straws, vents, or valves, the bottle is simple to assemble and dishwasher safe. It is compatible with the Kiinde Active Latch system, which promotes natural latching and helps relieve colic.