The Kiinde Active Latch Silicone Baby Bottle is designed for ease of use and cleaning. It features a unique gas-eliminating feeding design with a collapsible silicone inner sleeve that eliminates gas-inducing air as your baby drinks. The bottle is easy to clean, as the silicone sleeve can be flipped inside out and is safe for boiling, sterilizing, microwaving, and freezing. This bottle includes two medium flow Active Latch nipples with leak-proof snap-on covers, ensuring a mess-free feeding experience. The design promotes a natural latching experience, making it ideal for transitioning between bottle and breast. All components are BPA-free and phthalate-free, and the bottle is dishwasher safe.