The drop-shaped nipple promotes a tongue placement and sucking technique where the tongue is flat and presses the pacifier flat against the palate, which means that the baby does not need to suck as hard for the pacifier to flatten inside the mouth.
Further, the nipple is equipped with a valve, letting out air when the baby closes down on the nipple. This ventilation system causes the air from inside the nipple to be pushed out through the valve thereby flattening the nipple to shape naturally after the baby's oral cavity.
Natural Rubber Latex
Natural Rubber latex is a natural material made from a sticky milky fluid tapped from the Hevea tree. The fluid is refined to the brown/yellow rubber you know from your pacifiers; a super soft, elastic, and resilient material very much resembling the mother’s soft nipple.
The natural material comes with a natural aging process affected by natural influences like UV-light, air, saliva, and heat. The elasticity of the material allows the nipple to change shape and size because of the baby’s strong vacuum, this means that the nipple in some cases can expand if it is not replaced in time