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THERMOS FUNtainer 12 oz Replacement Straws for Kids – Soft Silicone Sippy Spare for Lunchbox and Daycare

THERMOS FUNtainer 12 oz Replacement Straws for Kids – Soft Silicone Sippy Spare for Lunchbox and Daycare

Regular price $36.15 USD
Regular price $49.74 USD Sale price $36.15 USD -27%
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Why you'll love it

  • Official THERMOS brand compatibility removes the guesswork of finding a fitting third-party straw
  • Buying replacements is far cheaper than replacing the whole bottle when one straw wears out
  • Soft silicone is gentle on developing teeth and gums compared to hard plastic straws
  • Having multiple straws on hand prevents a meltdown when the current one gets lost or dirty
  • Larger 6-pack size offers long-term value for families juggling multiple kids and bottles
  • Straws are removable and easy to clean, fitting into existing bottle-washing routines

Perfect for

  • Replacing chewed, stained, or worn-out straws on existing FUNtainer bottles without buying a new bottle
  • Rotating a clean straw in while the previous one is being washed for continuous hydration
  • Stocking a 6-pack in the pantry to avoid last-minute runs when straws go missing
  • Packing backup straws in school lunch boxes and daycare backpacks
  • Keeping spare straws in the car cup holder for messy snack runs and park outings


Product Information
Two pack contains 4 replacement straws for THERMOS FUNTAINER 12 Ounce Insulated Kids Straw Bottles

Includes four soft silicone straws and 4 hard straw stems
Not for use with hot beverages
THERMOS_FUNtainer_12_Ounce_Insulated_Kids_Water_Bottle_Replacement_Straws,_4_Straws
Not intended for carbonated beverages
Material: Silicone
Color: Clear
Size: 2 Pack
Special Feature: Insulated
Brand: THERMOS
Unit Count: 4.0 Count
Number of Items: 2
UPC: 041205764397
Manufacturer: THERMOS

Your family will drink their fill from their FUNtainer water bottle. This 4-pack of replacement straws is a convenient way to replace current straws or to swap out a straw for a clean one between washings. The straws are removable and easy to clean. Each pack includes (4) soft silicone straws and (4) hard straw stems.Item Type Name: FUNtainer Replacement Straw
Included Components: replacement straw
Item Weight: 12 Ounces
Size: 2 Pack
Number of Items: 2
Material Type: Silicone
Color: Clear
Other Special Features of the Product: Insulated

Frequently Asked Questions

Is this replacement straw soft enough for my toddler's sensitive gums?

Yes. The straws are made of soft, food grade silicone that flexes gently during sips, which is much kinder to developing teeth and tender gums than hard plastic alternatives commonly sold in stores.

Can my child safely clean the straw during a sleepover or at daycare?

The straw disassembles from its support stem and rinses quickly under running water, so even young kids in a classroom or grandparents' house can wash it between uses with minimal adult help.

Will the straw stay in place while my toddler runs around the playroom?

Each silicone straw pairs with a rigid plastic support stem that holds its shape inside the FUNtainer lid, so the straw stays upright and properly aligned even when the bottle is tossed into a backpack or tipped in a cup holder.

Is the straw safe to use in the high chair without choking concerns?

The straw sits inside the bottle lid and is not a loose small part once installed, and the silicone tip is too wide to be a choking hazard, so it is appropriate for use during high chair meals and snack time.

Does the clear material help me see if it is clean for my child?

Yes. The neutral, translucent silicone makes residue, milk film, and soap bubbles easy to spot, so you can visually confirm the straw is hygienic before handing the bottle back to your kid.

Where do parents usually keep spare FUNtainer straws at home?

Most parents stash them in the kitchen junk drawer, the lunch prep basket, the diaper bag, and the car glove box so a clean replacement is always within reach when a straw goes missing or gets dirty.

Is this a good purchase for a family with two or three kids?

Yes. The 6 pack option is built for multi child households, giving each child their own color rotated straw and enough backups to cover lost, chewed, or daycare left behind straws without panic buying.

Will my kids actually use this or will they reject the replacement straw?

Because these are official THERMOS brand straws designed for the FUNtainer lid, the fit, flow, and feel match the original, so most children do not notice a difference and drink normally from the spare.

Is buying replacement straws cheaper than a whole new bottle?

Yes. Replacing just the straw costs a small fraction of a new FUNtainer bottle, which is why parents stock a multi pack to extend the life of bottles they already own instead of replacing the entire set when one straw wears out.

Does this fit the kids lunch box and daycare cubby?

Yes. A few spare straws fit easily into a lunch box side pocket, a backpack front pouch, or a classroom cubby, so your child always has a clean straw at daycare without carrying the whole bottle home first.

Are these straws better than generic third party replacements?

Yes. Official THERMOS straws are cut to the exact length and diameter of the FUNtainer lid, so you avoid the leaking, loose fit, and flow problems that come with off brand knockoffs sized for the wrong bottle.

Can I rotate a clean straw in while the used one is washing?

Yes. That is exactly the use case parents love. Keep two or three in rotation, swap in a fresh one when the current straw needs washing, and your child never has to wait for a clean sip during snack or meal time.

Will the silicone flavor or smell bother my picky kid?

No. The food grade silicone is taste and odor neutral, so it does not transfer flavors to water or milk, which matters for kids who refuse bottles that taste like rubber or plastic.

How long does a soft silicone straw usually last for a toddler?

With normal use, most parents replace a straw every two to three months, or sooner if it shows bite marks, cloudiness, or persistent residue that hand washing cannot remove, which is why the 6 pack is a popular value choice.

Is it safe to hand these to a toddler without sharp parts?

Yes. There are no sharp edges, no glass, and no small detachable beads. The straw and its support stem are smooth, rounded, and sized so toddlers can handle them during a self feeding routine without injury risk.

What if my child bites through the silicone straw?

That is the most common reason parents buy these packs. When bite marks or splits appear, simply swap in a fresh straw from the pack rather than discarding the entire bottle, and rotate stock so you are never caught without a spare.

How do I install the replacement straw into my FUNtainer bottle?

Remove the lid, slide the silicone straw onto the hard plastic support stem until it seats fully, then insert the assembled straw and stem into the underside of the lid until you hear or feel a click. The straw should sit straight and flush with no gaps around the seal.

How do I clean the replacement straw thoroughly?

Pull the silicone straw off the support stem, rinse both pieces under warm running water, use a small bottle brush or straw cleaning brush with a drop of dish soap to scrub the inside of the silicone, rinse again, and stand both pieces upright to air dry completely before reassembly.

How often should I replace the straw on a kids water bottle?

Most families replace the straw every two to three months with regular use, or sooner if you see bite marks, splits, cloudiness, or a persistent smell or taste that does not wash out. Rotating a fresh straw from a multi pack on a set schedule keeps the bottle hygienic without any guesswork.

Is this straw compatible with the THERMOS FUNtainer 12 ounce bottle only?

Yes. This replacement straw is custom sized for the THERMOS FUNtainer 12 oz bottle line. It is not designed for the FUNtainer 10 oz, 16 oz, or other THERMOS bottle families, and it will not fit most non THERMOS kids bottles on the market.

Will this straw work with other THERMOS kids bottle models?

No. The FUNtainer 12 oz straw uses a specific length, diameter, and lid geometry that does not match the 10 oz, 16 oz, or stainless steel FUNtainer models. For those bottles, purchase the replacement straw pack designed for the exact model you own.

What is included in the box when I order this product?

Each order includes the selected number of soft silicone straws paired with hard plastic support stems, packed in a single THERMOS branded pack. The bottle itself is not included, and no additional parts or tools are required for installation.

Are these straws dishwasher safe?

Hand washing is strongly recommended to extend the life of the silicone and the seal. The top rack of a dishwasher on a gentle cycle may be acceptable in a pinch, but high heat and harsh detergents can shorten the lifespan of the straw and the support stem over time.

Is the straw material safe for kids with allergies?

The straw is made of food grade silicone that is BPA free, phthalate free, and latex free. It does not contain common allergens like nuts, dairy, or soy, but if your child has a specific material sensitivity, review the full material list on the packaging or contact THERMOS directly before use.

How does a replacement straw differ from a built in straw on a sippy cup or tumbler?

A built in straw is permanently attached to the lid, so when it wears out, gets chewed, or clogs, the entire lid usually has to be replaced. A removable FUNtainer straw lets you swap in a fresh piece in seconds for a fraction of the cost of a new lid or a new bottle, which is the core advantage of this replacement pack.

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