I used to use these for my firstborn son before I started using the Dr. Brown bottles. They seemed to be okay but then I realized my baby would have tons of spit up and gas from the bottles so I switched to the Dr. Browns.

I used to use these for my firstborn son before I started using the Dr. Brown bottles. They seemed to be okay but then I realized my baby would have tons of spit up and gas from the bottles so I switched to the Dr. Browns.