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!

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).

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

Can i use it for milk

Yes, this could be used for milk, or any other cod beverage.

Funtainer 12oz Water Bottle | Desertcart Spain

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€ 36.87

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Keep it cool, keep it classic — hydration that’s always in style!

CLEAN SAFE - Removable, hygienic silicone straw and dishwasher-safe design keep your bottle fresh and BPA-free.
TRUSTED HERITAGE - Backed by 120 years of Thermos innovation—reliable hydration that parents and kids can count on.
STAY CHILL ALL DAY - Vacuum insulation keeps drinks icy cold for up to 12 hours—no more lukewarm sips during busy days.
EFFORTLESS HYDRATION - Push-button flip-top lid with integrated carry handle and soft-touch grip makes hydration easy and stylish.
KID PROOF DURABILITY - Built tough with premium 18/8 stainless steel to survive drops, dings, and daily adventures.

The THERMOS FUNTAINER 12oz water bottle combines advanced vacuum insulation technology with durable 18/8 stainless steel construction to keep drinks cold for up to 12 hours. Designed specifically for kids, it features a leak-proof flip-top lid with an integrated carry handle and a hygienic, removable silicone straw. Lightweight and compact, it fits easily in backpacks and cup holders, making it the perfect hydration companion for school, sports, and everyday adventures. BPA-free and dishwasher safe, this bottle is backed by Thermos’ 120-year legacy of quality and innovation.

Specifications

ASIN	B00DAPQV0K
Additional Features	Cold 12 Hours, Double Wall
Age Range Description	Kid
Base Diameter	3.1 inches
Best Sellers Rank	#19 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #2 in Insulated Bottles
Brand Name	THERMOS
Cap Type	Flip Top Cap
Capacity	12 fluid ounces
Color	Navy
Customer Reviews	4.7 4.7 out of 5 stars (48,197)
Included Components	kids water bottle
Item Dimensions W x H	2.7"W x 6.9"H
Item Type Name	insulated-beverage-bottles
Item Weight	6.4 ounces
Manufacturer	Thermos LLC
Manufacturer Warranty Description	5 year manufacturer
Material Type	Stainless Steel
Model Name	FUNTAINER 12 Ounce Bottle
Number of Items	1
Pattern	Solid Color
Product Care Instructions	Top Rack Dishwasher Safe
Recommended Uses For Product	Water
Theme	Color
UPC	041205747079
Unit Count	1 Count

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