Designed to be held in the most natural position during feeding, the compact shape of the bottle also allows baby to be closer to you. Tommee Tippee Closer to Nature baby bottles are available in a wide range of sizes, colors and decorations. Nipples are available in a range of flow rates too, so the milk can flow faster as your baby gets hungrier! The wide neck bottle makes cleaning easy, and the bottles are suitable for use in the dishwasher, microwave and steam sterilizers. 100% BPA-free for complete peace of mind.