ANTI-COLIC GLASS BABY BOTTLE. Anti-Colic internal vent system is clinically proven to reduce colic. Decreases spit-up, burping and gas. | CONSISTENT FLOW RATE. Vacuum-free feeding is closest to breastfeeding and Dr. Brown’s silicone nipples provide a consistent flow so babies can feed at their own pace. | PRESERVES NUTRIENTS. The anti-colic vent system is proven to help preserve bottle milk nutrients and aids in digestion for a better night’s sleep. | BREASTFEEDING BOTTLE. 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. | BOTTLE GROWS WITH BABY. With three nipple levels included, Slow Flow, Medium Flow and Medium-Fast Flow, bottle grows with baby! Dr. Brown’s Natural Flow Anti-Colic Options+ baby bottle works best with the internal vent system in place but can be removed as baby’s feeding develops - no need to introduce a different bottle. | GLASS BOTTLE GIFT SET. The included 100% silicone sleeves protect the bottle while in use, while sterilizing or while in the dishwasher. Introducing baby to a pacifier is easy with HappyPaci silicone one-piece pacifier, shaped like Dr. Brown’s bottle nipple. Dr. Brown’s bottle brush and storage/travel caps make cleaning and storing a breeze. | SUSTAINABLE BABY BOTTLE. Dr. Brown’s Narrow bottle is designed to nourish through all of baby’s feeding stages and is recyclable. | DISHWASHER SAFE. Bottles, pacifier, and silicone sleeves safe for use in dishwasher (top rack only), electric and microwave sterilizers or boiling water. BPA Free. | Gift Set (0m+) Includes: 2 - 8oz/250mL GLASS bottles, 2 - 4oz/120mL GLASS bottles, 4 - Level 1 (Slow Flow) nipples, 2 - Level 2 (Medium Flow) nipples, 2 - Level 3 (Medium-Fast Flow) nipples, 2 - Storage/travel caps, 1 - 8oz/250mL Glass silicone bottle sleeve, 1 - 4oz/120mL Glass silicone bottle sleeve, 1 - Bottle brush, 1 - HappyPaci silicone pacifier (0-6m)