Comotomo Baby Bottles feature an innovative and sensible design to most closely mimic natural breastfeeding. The naturally shaped, soft, silicone nipples are ideal for babies who have trouble transitioning from nursing to bottle-feeding. Your little one will love to hold onto the skin-like, soft and squeezable body that is like no other bottle in the world. These bottles also feature a wide-neck design for brushless, stress-free, cleaning bliss! They are equipped with truly innovative vents designed to prevent colic while completely eliminating annoying leaks. They are quite possibly the most thoughtful bottles ever made.