"Comotomo Silicone 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 BPA-free baby bottles also feature a wide-neck design for brushless, stress-free, cleaning. They are equipped with truly innovative vents designed to prevent colic while completely eliminating annoying leaks. See why parents call Comotomo bottles “a game changer”! *5oz bottles come equipped with Slow Flow nipples (0-3 months), and 8oz bottles come equipped with Medium Flow nipples (3-6 months). Faster flows available separately."