THERMOS FUNtainer 12 oz Replacement Straws – Portable Spare Pack for Park Outings and Road Trips
THERMOS FUNtainer 12 oz Replacement Straws – Portable Spare Pack for Park Outings and Road Trips
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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
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
Are these straws durable enough for camping and travel use?
Yes. The combination of soft silicone and a rigid support stem is built to handle being tossed into a diaper bag, a car cup holder, or a camping bin without collapsing or losing shape during a long weekend outdoors.
Will the straws leak if I pack them in a backpack for a hike?
When properly installed in the FUNtainer lid, the straw seals the same way the original does. For travel, keep spare uninstalled straws in a small zip bag so they stay clean and dry until you swap them in at the trailhead or rest stop.
Can I use these straws on a hot day at the park?
Yes. The silicone is heat tolerant enough for cold water and ice, and the clear material will not warp in a warm car. Just avoid leaving a fully assembled bottle in direct sun for hours, as that can affect any insulated kids bottle over time.
Is the 6 pack good for a long family road trip?
Yes. A multi pack gives you enough clean straws to rotate through a full day of driving, restaurant stops, and hotel nights without needing to wash and dry a single straw before the next leg of the trip.
Will the straw work in a car cup holder without bending?
Yes. The hard plastic support stem keeps the silicone straw straight and properly aligned inside the FUNtainer lid, so even when the bottle is wedged into a car cup holder the straw does not kink or fold over.
Can I bring these straws on a plane in my carry on?
Yes. A pack of silicone straws and support stems is permitted through airport security and adds almost no weight to a carry on bag, making them easy to pack for flights and layovers.
How do these straws compare to metal straws for outdoor use?
Metal straws are rigid, can conduct heat from warm drinks, and pose a dental injury risk if a child falls while sipping. Soft silicone is gentler, does not conduct temperature, and is much safer for active outdoor play.
Are these straws better than paper disposable straws for picnics?
Yes. Paper straws go soggy within minutes, collapse, and leak. The official THERMOS silicone straw holds its shape for the entire picnic and can be rinsed and reused at the next stop.
Can I use these straws at the beach without sand getting stuck?
Yes. Just remove the lid, rinse with bottled water, and reinstall. The clear silicone makes it easy to spot any sand that did get inside, and a quick rinse restores the straw to a clean state for the next sip.
Will the straw stay clean inside the bottle in a hot car trunk?
Heat alone does not introduce contaminants, but it can encourage bacterial growth in any residual liquid. Empty and dry the bottle before stashing it in the trunk, and swap in a fresh straw at the next stop for a clean drink.
Is this pack useful for a vacation rental stay?
Yes. Vacation rental kitchens rarely have kid specific supplies, and a travel pack of straws ensures your child has a clean, familiar drinking setup from the moment you walk through the door without relying on the rental's mismatched cups.
Does the straw hold up in cold weather or with ice water?
Yes. Silicone stays flexible in cold temperatures and does not crack when filled with ice water, making it a reliable choice for winter sports days, ski trips, and cold morning hikes.
Can I use these straws for smoothies on a camping trip?
Yes, though thicker liquids require a slightly wider opening. The FUNtainer straw is best for water and juice, so for thick smoothies at the campsite, consider blending first or using a wider cup for the kids.
Is the 6 pack overkill for a single child on a short trip?
For a one or two day outing, a 1 pack or 2 pack is plenty. Save the 6 pack for longer trips, multi child families, or for stashing extras in the car, the diaper bag, and the grandparents' house so you always have a spare within reach.
What if a straw gets dirty at a rest stop with no sink?
Swap in a fresh straw from your pack and seal the dirty one in a small zip bag until you can rinse it. That is the main reason outdoor families buy the multi pack: a clean replacement is always ready when a sink is not.
How do I pack spare straws for a theme park day?
Toss two or three straws into a small zip bag, drop them in the backpack side pocket, and you are set for a full day of water, juice, and snack refills without ever needing to find a drinking fountain rinse station.
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.

