If you are looking for the comfort of modern technology combined with the elegance of a classic glass bottle then the Evenflo 8 Ounce Glass Bottle is right for you. It comes with a standard shaped silicone Slow Flow nipple, which responds to baby's pressure. The nipple also has micro air vents to reduce air in baby's tummy.
Standard nipple shape
Micro Air Vents in nipple reduce air in baby's tummy
CustomFlow nipple - flow responds to baby's pressure