Dr. Brown's trusted feeding solutions – in a silicone bottle designed to reduce colic! The thin silicone insert collapses as baby feeds, minimizing air intake to help reduce colic spit-up, burping, and gas. Built-in air vents help prevent nipple collapse if pressure is applied to the silicone insert. The only thing breast milk or formula touches is high-quality, food grade silicone. The Silicone Bottle comes with Dr. Brown's Wide-Neck Nipple, trusted for its consistent flow rate so babies feed comfortably and at their own pace. And the nipple is interchangeable with Dr. Brown's Anti-colic Options+ Wide-Neck Bottles. The silicone bottle offers a smooth transition from breast to bottle with a breast-like nipple shape that encourages a proper latch for a more natural bottle-feeding experience. The bottle comes with a leakproof cap that's perfect for travel, and its lightweight, ergonomic design makes it comfortable to hold. This reusable and durable silicone bottle grows with baby – add Dr. Brown's Wide-Neck Silicone Handles and Dr. Brown's Wide-Neck Sippy Spout as baby's drinking skills develop (sold separately). Simple to assemble and easy to clean, all parts are dishwasher (top rack) and sterilizer safe. BPA free.