Quick Facts
A spill-proof, BPA-free sippy cap that converts Classic narrow mouth Kanteen bottles into a toddler-friendly Kid Kanteen.
Best for
Parents of toddlers who use Classic narrow mouth Kanteen bottles
Key detail
BPA-free
Size and fit
Compatible with Classic narrow mouth bottles only
Consider if
Consider a different cap if you use wide mouth or non-Classic bottles
Shipping
Free US shipping over $100, 30-day returns
Turn a Classic Bottle into a Kid Friendly Sipper
Spill-proof, BPA-free cap with dust cover and a metal loop, converts Classic narrow mouth bottles for toddler use.
Turn a Classic Bottle into a Kid Friendly Sipper
Spill-Proof and Protected
Spill-Proof and Protected

The sippy spout has a protective dust cover to keep dirt and germs away between uses. The compact design stays sealed when closed, making toss-and-go storage easier for busy days.

Made for Little Hands
Made for Little Hands

Low-profile spout and a swing-away metal loop make carrying and drinking simple for toddlers. The loop clips to a bag or stroller, then swings out of the way when it is time to drink.

Designed to Fit Correctly
Designed to Fit Correctly

This cap is made to thread onto Klean Kanteen Classic narrow mouth bottles with internal threads so it seats securely. Verify your bottle has internal threads before ordering to ensure compatibility.

Spill-Proof Spout
Spill-resistant design helps reduce messy leaks during use and transport.
BPA Free
Made without BPA, for everyday peace of mind while your child drinks.
Protective Dust Cover
The snap-on dust cover keeps the spout clean between sips or when stored.
U.S. Support
Ships from a US warehouse, with human customer support and 30-day returns.
How to Choose a Sippy Cap

A few practical checks will help you pick the right cap for your child and bottle.

  1. Check Bottle Compatibility: This cap fits Classic narrow mouth bottles with internal threads only; confirm your bottle type before buying.
  2. Match Your Child’s Skill: Toddlers who drink from a spout already will adapt quickly; consider their current feeding stage when choosing a cap.
  3. Think About Cleaning: Look for a simple spout shape and removable cover so rinsing and washing are quick and thorough.
  4. Plan for Outings: If you clip bottles to strollers or bags often, the swing-away metal loop makes transport easier and cleaner.
  5. Inspect and Replace: Check the spout and threads periodically, and replace the cap if you notice cracking or persistent leakage.
Frequently Asked Questions
Will this cap fit my bottle?

This cap is compatible only with Klean Kanteen Classic narrow mouth bottles that have internal threads. It will not fit bottles with external threads or other mouth designs.

Is the sippy cap dishwasher safe?

The product description does not include specific cleaning instructions. For best results, follow Klean Kanteen care recommendations or hand wash if you are unsure.

Can I use hot drinks with this cap?

The description does not state suitability for hot liquids. To protect little mouths, avoid serving hot beverages through a child sippy spout.

How does the metal loop work?

The swing-away metal loop lets you clip the bottle to a bag or stroller and swings out of the way when your child drinks, keeping the spout accessible and the cap secure.

What are your shipping and returns policies?

We ship from a US warehouse, and orders over $100 qualify for free US shipping. We offer 30-day returns and human customer support if you need help.

From the Moogco Baby Journal
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"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"

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"I was lucky to find this pad for my grandson’s bassinet. I like how it is all natural snd organic. Just make sure to buy it a little bigger because it shrinks after washing. Also give ample time…"

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"These helped at first but it seemed like the edges dug into my skin making it irritated (might have needed the larger ones). Once my milk came in more, milk would spill everywhere. I found that milk…"

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★★★★★

"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"

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Elizabeth
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★★★★★

"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"

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"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"

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"Only paci my breast feed three week old has accepted so far🙌🏼"

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"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"

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"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"

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"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"

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"These were great in the beginning helped me so much."

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"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."

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"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"

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"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"

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"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."

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Verified buyer · March 25, 2026
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"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"

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"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"

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"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."

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Bridget
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"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."

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"These were great in the beginning helped me so much."

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Kyle
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