Thinkbaby Accessories

6 products
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Thinkbaby 2 Pack Cross Cut Stage A Nipples
$5.49
3456 in stock
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Thinkbaby 2 Pack Cross Cut Stage B Nipples
$5.49
2792 in stock
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Converts Baby Bottle to Sippy Cup - Orange
$6.49
-2089 in stock
Sold Out
Thinkbaby 3 Pack Thinkster Replacement Straws
$4.75
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Neoprene Thermal Bottle Sleeve - Pink
$5.49
1060 in stock
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Neoprene Thermal Bottle Sleeve - Orange
$5.49
3216 in stock

Thinkbaby 2 Pack Cross Cut Stage A Nipples

$5.49 Save $-5.49

  • Free of - BPA, phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals.
  • No spill nipple featuring our cross cut design. The design mimics natural breastfeeding as it requires your little one to nurse to receive fluid.
  • Anti-colic nipple helps reduce incidence of gas and spit up. Unique one-piece design eliminates cleaning headaches and tricky assembly. No extra parts to lose.
  • Extra soft, medical grade silicone - provides easier transition from breastfeeding to bottle feeding.
  • Comes with Stage A nipple (for 0 - 6 months)

The transformational Thinker System line allows parents to transform baby bottles to our award-winning Sippy Cup through the purchase of the Conversion Kit. The system saves parents money and the environment from discarding baby bottles when its time for the next stage in feeding.

The nipple is made from medical grade silicone. Our eco-friendly bottles are made from materials that can be recycled after use.

We do not conduct animal testing on any of our products. All of our testing is either chemical testing or biological testing (on cells). We utilize third-party globally certified laboratories to conduct our testing.

Dishwasher safe (Top rack recommended).

Before first use, we recommend sterilizing the bottles in boiling water for 2 to 5 minutes. We do not recommend utilizing sterilizers, as we cannot guarantee that the ones on the market were made with safe materials.

To prepare the nipple for first use, squeeze the top of the nipple and the venting tube. You will want to make sure they both open properly. When tightening down the collar of the bottle, do not over tighten, as this will reduce the amount of airflow into the baby bottle.

What nipple flow should I use?
The flow rates are determined by averages. Depending on your little one, you may need to adjust the flow rate that you purchase. The chart below should provide help in determining which to purchase.

  • 0 to 6 months: Stage A Nipples
  • 6 to 12 months: Stage B Nipples
  • 9 to 36 months: Sippy Cup Spouts
  • 18 to 48 months: Thinkster Straw Top

Baby bottle nipples and spouts made from silicone will typically last 2 to 3 months prior to needing replacement. If you notice tears or breakage, discontinue use and replace.

How does the venting system work?
The venting systems work by allowing air to travel back into the baby bottle. Movement of air back into the baby bottle allows the bottle's internal pressure to reach equilibrium. This reduces the amount of suction required to get fluid out of the baby bottle. Research shows that having a venting system reduces the incidence of gas and spit up, as children take in less air when drinking when venting systems are present. The advantage to Thinkbaby's system is that it is built right into the baby bottle nipple. So, there are no extra parts to deal with and it's easy to clean.

How do I convert the Thinkbaby bottle into the Sippy Cup or Straw Bottle?
Remove the baby bottle nipple and replace with the Sippy Cup spout. Place the Sippy Cup handles around the top of the baby bottle and push down over the neck of the bottle. Tighten the collar with spout around the neck of the bottle and presto-chango! You have our award-winning Sippy Cup!

Converting The Sippy Cup into The Thinkster: Take the collar off of the baby bottle (along with spout) and screw on the Thinkster top. Ta-da! The Thinkster!

    Since 2006, Thinkbaby & Thinksport has been creating safe, highly functional, and sustainable products. We continue the safer products mission by targeting harmful consumer product categories and developing safer alternatives for a wide audience ranging from babies to athletes. With a team of physicians & scientists, Thinkbaby & Thinksport lead in the usage of safe materials for consumer products. As such, the company has a long list of FIRSTS 1st BPA free baby bottle line, 1st BPA free insulated sports bottle, 1st line of yoga mats free of harmful chemicals, and the 1st sunscreen to pass Whole Foods Premium Care requirements.

    Thinkbaby 2 Pack Cross Cut Stage B Nipples

    $5.49 Save $-5.49

    • Free of - BPA, phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals.
    • No spill nipple featuring our cross cut design. The design mimics natural breastfeeding as it requires your little one to nurse to receive fluid.
    • Anti-colic nipple helps reduce incidence of gas and spit up. Unique one-piece design eliminates cleaning headaches and tricky assembly. No extra parts to lose.
    • Extra soft, medical grade silicone - provides easier transition from breastfeeding to bottle feeding.
    • Comes with Stage B nipple (for 6 - 12 months)

    The transformational Thinker System line allows parents to transform baby bottles to our award-winning Sippy Cup through the purchase of the Conversion Kit. The system saves parents money and the environment from discarding baby bottles when its time for the next stage in feeding.

    The nipple is made from medical grade silicone. Our eco-friendly bottles are made from materials that can be recycled after use.

    We do not conduct animal testing on any of our products. All of our testing is either chemical testing or biological testing (on cells). We utilize third-party globally certified laboratories to conduct our testing.

    Dishwasher safe (Top rack recommended).

    Before first use, we recommend sterilizing the bottles in boiling water for 2 to 5 minutes. We do not recommend utilizing sterilizers, as we cannot guarantee that the ones on the market were made with safe materials.

    To prepare the nipple for first use, squeeze the top of the nipple and the venting tube. You will want to make sure they both open properly. When tightening down the collar of the bottle, do not over tighten, as this will reduce the amount of airflow into the baby bottle.

    What nipple flow should I use?
    The flow rates are determined by averages. Depending on your little one, you may need to adjust the flow rate that you purchase. The chart below should provide help in determining which to purchase.

    • 0 to 6 months: Stage A Nipples
    • 6 to 12 months: Stage B Nipples
    • 9 to 36 months: Sippy Cup Spouts
    • 18 to 48 months: Thinkster Straw Top

    Baby bottle nipples and spouts made from silicone will typically last 2 to 3 months prior to needing replacement. If you notice tears or breakage, discontinue use and replace.

    How does the venting system work?
    The venting systems work by allowing air to travel back into the baby bottle. Movement of air back into the baby bottle allows the bottle's internal pressure to reach equilibrium. This reduces the amount of suction required to get fluid out of the baby bottle. Research shows that having a venting system reduces the incidence of gas and spit up, as children take in less air when drinking when venting systems are present. The advantage to Thinkbaby's system is that it is built right into the baby bottle nipple. So, there are no extra parts to deal with and it's easy to clean.

    How do I convert the Thinkbaby bottle into the Sippy Cup or Straw Bottle?
    Remove the baby bottle nipple and replace with the Sippy Cup spout. Place the Sippy Cup handles around the top of the baby bottle and push down over the neck of the bottle. Tighten the collar with spout around the neck of the bottle and presto-chango! You have our award-winning Sippy Cup!

    Converting The Sippy Cup into The Thinkster: Take the collar off of the baby bottle (along with spout) and screw on the Thinkster top. Ta-da! The Thinkster!

      Since 2006, Thinkbaby & Thinksport has been creating safe, highly functional, and sustainable products. We continue the safer products mission by targeting harmful consumer product categories and developing safer alternatives for a wide audience ranging from babies to athletes. With a team of physicians & scientists, Thinkbaby & Thinksport lead in the usage of safe materials for consumer products. As such, the company has a long list of FIRSTS 1st BPA free baby bottle line, 1st BPA free insulated sports bottle, 1st line of yoga mats free of harmful chemicals, and the 1st sunscreen to pass Whole Foods Premium Care requirements.

      Converts Baby Bottle to Sippy Cup - Orange

      $6.49 Save $-6.49

      • 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 an 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.

      How do I care for my Thinkbaby Sippy Cup?
      Thinkbaby Sippy cups are dishwasher safe (top rack recommended). Please take care not to wipe the measurement markings. We do not use lead in our paint, which is what predominately makes the paint stick. The US and EU standards actually allow for low levels of lead. We specifically do not want lead in our products.
      When washing the Sippy cups in the dishwasher, we recommend using a detergent that is free of chlorine. Most of the natural detergents on the market from Eco Lever to Seventh Generation should be free of toxic chemicals. If hand-washing, the American Pediatrics Association suggests using warm soapy water, but only if you live in an area with treated water systems.
      Before first use, we recommend sterilizing the Sippy cups in boiling water for 2 to 5 minutes before first use. We do not recommend utilizing sterilizers, as we cannot guaranty that the ones on the market were made with safe materials. While the baby bottles are technically microwave-safe, we strongly suggest that parents do away with the use of microwaves for all items and products destined for your little one.
      How do I convert the Thinkbaby bottle into the Sippy Cup?
      One of the great things about the Thinkbaby system is that you can convert the baby bottles into our award winning Sippy Cups. Simply purchase the Thinkbaby Conversion kit from your local retailer or online. To convert, remove the baby bottle nipple and replace with the Sippy Cup spout. Then place the Sippy Cup handles around the top of the baby bottle and push down over the neck of the bottle. Tighten the collar with spout around the neck of the bottle and.presto-changeo you have our award winning Sippy Cup!

      Since 2006, Thinkbaby & Thinksport has been creating safe, highly functional, and sustainable products. We continue the safer products mission by targeting harmful consumer product categories and developing safer alternatives for a wide audience ranging from babies to athletes. With a team of physicians & scientists, Thinkbaby & Thinksport lead in the usage of safe materials for consumer products. As such, the company has a long list of FIRSTS 1st BPA free baby bottle line, 1st BPA free insulated sports bottle, 1st line of yoga mats free of harmful chemicals, and the 1st sunscreen to pass Whole Foods Premium Care requirements.

      Neoprene Thermal Bottle Sleeve - Pink

      $5.49 Save $-5.49

      In creating a sleeve for Thinkbaby bottles, we looked carefully at the solutions on the market. We wanted a material that would provide maximum insulation and protection. But we also wanted to see how eco-friendly that we could make the sleeve.
      Our investigation took us to our friends at Patagonia. Patagonia largely pioneered the use of Limestone-based neoprene to replace traditional neoprene for their wetsuits.
      We have made them in 4 colors. They will not only protect the bottles but will provide significant insulation.
      Please note that we made them fit tight, so they cannot be easily removed by a toddler.

      Thinkbaby's sleeves are made from Limestone. They feel just like traditional neoprene.

      Hand wash. We recommend using a detergent that is free of chlorine. Most of the natural detergents on the market from Eco Lever to Seventh Generation should be free of toxic chemicals.

      The sleeves provide thermal inslation for any Thinkbaby stainless steel bottle. Also reduces the sound when launched from any high chair.

      Neoprene Thermal Bottle Sleeve - Orange

      $5.49 Save $-5.49

      In creating a sleeve for Thinkbaby bottles, we looked carefully at the solutions on the market. We wanted a material that would provide maximum insulation and protection. But we also wanted to see how eco-friendly that we could make the sleeve.
      Our investigation took us to our friends at Patagonia. Patagonia largely pioneered the use of Limestone-based neoprene to replace traditional neoprene for their wetsuits.
      We have made them in 4 colors. They will not only protect the bottles but will provide significant insulation.
      Please note that we made them fit tight, so they cannot be easily removed by a toddler.

      Thinkbaby's sleeves are made from Limestone. They feel just like traditional neoprene.

      Hand wash. We recommend using a detergent that is free of chlorine. Most of the natural detergents on the market from Eco Lever to Seventh Generation should be free of toxic chemicals.

      The sleeves provide thermal inslation for any Thinkbaby stainless steel bottle. Also reduces the sound when launched from any high chair.