Inspired by nature and developed in conjunction with midwives, breastfeeding moms and babies, Closer to Nature bottles are intuitively designed for easier, more natural feeding. The bottles feature unique soft, super wide nipples that naturally flex and stretch like the breast, and the natural shape helps baby latch on, allowing parents to successfully combine breast and bottle feeding. The bottle shape provides a comfortable hold and breastfeeding like closeness, while the ultra sensitive anti colic valve lets babies feed at their own pace. The resulting decrease in air intake, vacuum buildup and nipple collapse can help reduce gas and colic while feeding. Two blue 9 oz. bottles per pack.