5 oz. BPA free. Fashion tints bottle with latex nipple. Reduces colic with vented nipple design for less air. No. 1 selling reusable baby bottle in the USA (national brand sales in units). First Essentials is a complete line of baby bottles, pacifiers and accessories that cover all the basics - simple solutions for mom and baby. Slow flow nipple specially sized for newborns. Ribs and vent help prevent nipple collapse. Leak proof hood. Fits most breast pumps. Assembled in USA. Nipple made in Brazil.