Thinkbaby Sippy Conversion Kit

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  • Regular price $6.99
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  • Free of Bisphenol-A (BPA), phthalates, nitrosamines, lead, PVC, PET,  and biologically harmful chemicals.
  • Quickly converts Thinkbaby bottles into Thinkbaby Sippy Cup. Designed to fit all Thinkbaby 5oz and 9oz bottles. 
  • No Spill spout!!! features our cross cut design.  
  • Extra soft, medical grade spout provides easier transition from baby bottle feeding to Sippy Cups.  We have won multiple awards based on the ease of transition of our line.  
  • Perfect for 9 to 36 months 
  • Reduces environmental waste and pocketbook waste 
  • Dishwasher safe (Top rack recommended) 


Thinking behind the Conversion Kit


When we began work on the Thinkbaby system.  We looked at the number of baby bottles that parents purchased and the amount of waste that was created in the movement from baby bottles to Sippy cups. 

What we learned was that parents purchased 8 to 16 baby bottles in the first year.  Then tossed them out and replaced them with Sippy cups. This not only is a very expensive practice, but it also creates a great deal of environmental waste.  So we launched a system whereby you can easily transform Thinkbaby bottles into our award-winning Sippy cup.

Thinkbaby Sippy Cup handles are made from polypropylene.  The spout is made from medical grade silicone.

All of Thinkbaby products are free from BPA, BPS, PA, PS, PET, melamine, nitrosamines and biologically harmful chemicals.


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