The ability to interchange between the 6oz bottle body and the 8oz bottle body is great. The product is produced well and had no flaws. With that being said, when using the 8oz bottle body, and putting together the rest of the components to build the bottle (lid, nipple, bottom of bottle, etc...), we found that it does not fit in the thermal dome. You would have to remove the bottle lid/cover in order for it to fit in the thermal dome.
I would recommend this to a friend!
Response from ember.comBy Customer Support, Customer Support, October 2, 2023
Thank you for this feedback! We are currently developing a thermal dome that will fit the 8oz bottle body! Please keep a look out on social media and email for updates and launch dates!