THICKER LIQUIDS FOR BABY. Dr. Brown’s Y-Cut Nipple is the perfect step when baby is ready for thickened milk, formula or cereal. | ANTI-COLIC BABY BOTTLE WITH NIPPLE. Y-Cut Nipple, with Anti-Colic internal vent system, is clinically proven to reduce colic. Decreases spit-up, burping and gas and provides a more comfortable feeding experience for baby. | CONSISTENT FLOW RATE. Vacuum-free feeding is closest to breastfeeding and Dr. Brown’s Y-Cut Nipples provide a consistent flow so babies can feed at their own pace. | DEPENDABLE NIPPLE FLOW. Each nipple level provides clinical consistency within the flow rate, so baby’s feeding experience is constant and comfortable. | BREASTFEEDING WIDE-NECK SILICONE NIPPLE. The breast-like nipple shape encourages a proper latch for a more natural bottle feeding experience and eases the transition from breast to bottle and back again. | PRESERVES NUTRIENTS. The Y-Cut Nipple and Anti-Colic vent system is proven to help preserve bottle milk nutrients and aid in digestion for a better night’s sleep. | SOFT 100% SILICONE. Silicone nipple fits all Dr. Brown’s Options+ wide-neck bottles. | DISHWASHER SAFE. Safe for use in dishwasher (top rack only), electric and microwave sterilizers or boiling water. BPA Free.