But i rarely take them off, i just wash them with the bottle and so far no gunky buildup anywhere.

But i rarely take them off, i just wash them with the bottle and so far no gunky buildup anywhere.  Read Less

Good quality, good colorsnot too heavy, they have nice slow release nipples and they do not leak.

Good quality, good colorsnot too heavy, they have nice slow release nipples and they do not leak.  Read Less

They're really superior quality and are worth the investment for the long haul with the caveat that you will still need to find...  Read More

They're really superior quality and are worth the investment for the long haul with the caveat that you will still need to find a good sippy cup option until your little one can handle the hard spouts.  Read Less

With the plastic bottles they started to fog after a while and would hold the smell of the formula.

With the plastic bottles they started to fog after a while and would hold the smell of the formula.  Read Less

I put the required amount of formula in the innobaby packin smart twistables, and the opening to those fits perfectly into the bottle.

I put the required amount of formula in the innobaby packin smart twistables, and the opening to those fits perfectly into the bottle.  Read Less

Go ahead and spend the extra $40 on the bottles.

Go ahead and spend the extra $40 on the bottles.  Read Less

I think it hit on the unprotected neck of the bottle, but the bottle literally broke into a spray of thousands of shards of glass.

I think it hit on the unprotected neck of the bottle, but the bottle literally broke into a spray of thousands of shards of glass.  Read Less