Can you not store milk in these? Looking for a way to keep my son's soy milk cold without lugging an ice pack.

You can definitely put milk in this thermos, but to keep it ice cold you need a water bottle ice pack (the myColdCup ones on Amazon). These work really well because the ice pack is put *inside* the thermos (rather than a bulky ice pack outside), so it does not need to be nearly so big to have the same cold effect. One ice pack in this 12 oz thermos will keep the milk really ice-cold for more than 8 hrs. He will love it!

Can this bottle be filled with hot water and keep the water warm for hours?

No. It says that ON THE BOTTLE. It’s not for hot liquids

is this bottle leakproof?

Yes, is is leakproof. If the top is screwed on correctly (not misthreaded) and the straw is pulled through tight, it will NOT leak. The few times we’ve had it leak is due to user error. Though it will obviously leak (little dribbles) if the top is not closed and the bottle is turned upside down or laid on its side. For reference, we’re probably going to buy this for the third time in two years because it keeps getting lost. It’s leak proof and easy to clean (no mold).

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FUNTAINER Water Bottle with Straw - 12 Ounce, Butterfly Frenzy - Kids Stainless Steel Vacuum Insulated Water Bottle with Lid

Product ID: 442794339

Details

Brand
THERMOS
Capacity
340 g
Colour
Butterfly
Recommended uses for product
Water
Special features
Cold 12 Hours

🔒Vacuum insulated double wall

🧴Hygienic pop-up straw

❄️Keeps drinks cold 12 hrs

$42.40

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Description

❄️ Sip in Style, Stay Cool All Day!

TRUSTED LEGACY - Backed by 120 years of Thermos innovation, combining heritage reliability with modern kid-friendly design.
CLEAN GERM FREE - Removable, hygienically covered silicone straw ensures easy cleaning and keeps germs at bay.
STAY CHILL ALL DAY - Vacuum insulation technology locks in cold for up to 12 hours, keeping hydration fresh and refreshing.
EFFORTLESS HYDRATION - Push-button lid with integrated soft-touch carry handle makes sipping and carrying a breeze for little hands.
BUILT FOR ROUGH TUMBLE - Durable 18/8 stainless steel construction resists drops and dings—perfect for active kids on the go.

The THERMOS FUNTAINER 12oz Butterfly Frenzy water bottle features vacuum insulation that keeps drinks cold for 12 hours, durable stainless steel construction designed for kids, and a hygienic pop-up straw with a push-button lid and soft-touch handle. Dishwasher safe and built to withstand daily use, it’s the trusted hydration companion for active kids.

Specifications

ASIN	B09WG64Y5V
Additional Features	Cold 12 Hours, Double Wall, Push Button Lid, Vacuum Insulated
Age Range Description	Kid
Base Diameter	2.7 Inches
Best Sellers Rank	#4,677 in Kitchen ( See Top 100 in Kitchen ) #145 in Insulated Bottles
Brand Name	THERMOS
Cap Type	Flip Top Cap
Capacity	340 g
Color	Butterfly Frenzy
Customer Reviews	4.7 4.7 out of 5 stars (8,709)
Included Components	kids water bottle
Is Oven Safe	No
Is the item dishwasher safe?	Yes
Is the item microwaveable?	No
Item Dimensions W x H	7.9W x 17.5H centimeters
Item Type Name	insulated-beverage-bottles
Item Weight	113 g
Manufacturer	THERMOS
Material Type	Stainless Steel
Model Name	FUNTAINER 12 Ounce Bottle Solid
Number of Items	1
Pattern	Decorated
Product Care Instructions	Top Rack Dishwasher Safe
Recommended Uses For Product	Water
Theme	Animal
UPC	041205753605
Unit Count	1.0 Count
With Lid	Yes

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$42.40

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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