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.

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THERMOS FUNTAINER 12oz Stainless Steel Vacuum Insulated Kids Straw Bottle Blue Paw Patrol

THERMOS FUNTAINER 12oz Stainless Steel Vacuum Insulated Kids Straw Bottle Blue Paw Patrol

Product ID: 725114443

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Details

Brand
サーモス(THERMOS)
Capacity
340 g
Color
blue
Recommended Uses For Product
Water
Special Feature
Cold 12 Hours

🧴Hygienic covered straw

❄️12-hour cold retention

🛡️18/8 stainless steel durability

Description

❄️ Keep your kid’s drink cooler, longer—because hydration should never be boring!

STAY CHILL ALL DAY - Vacuum insulation keeps drinks icy cold for up to 12 hours—no more lukewarm sips!
BUILT TO BRAVE THE ROUGH - Premium 18/8 stainless steel withstands drops and dents, perfect for active kids on the go.
KID APPROVED CONVENIENCE - Lightweight design with a soft-touch carry handle and push-button lid makes hydration effortless.
DISHWASHER SAFE DURABILITY - Tough enough for daily use and easy cleanup—hand wash recommended for longevity.
CLEAN GERM FREE HYDRATION - Pop-up covered straw guards against germs and is easy to remove for thorough cleaning.

The THERMOS FUNTAINER 12oz Kids Straw Bottle features advanced vacuum insulation technology that keeps beverages cold for up to 12 hours. Crafted from durable 18/8 stainless steel, it resists dents and drops, making it ideal for everyday use. Designed with a hygienic covered pop-up straw and a soft-touch carry handle, this lightweight bottle combines kid-friendly convenience with easy cleaning. Dishwasher safe and built to last, it’s the ultimate hydration companion for active kids.

Specifications

Manufacturer	Thermos
Model Number	F4104PP6
Package Dimensions	22 x 10.9 x 8.9 cm
Material	Stainless Steel
Color	blue
Volume	354 Milliliters
Size	12オンス
Special Features	Cold 12 Hours, Double Wall, Vacuum Insulated
Package Weight	0.23 Kilograms
Batteries Required	No
Batteries Included	No
Material Care Instructions	Hand Wash Only
Brand Name	サーモス(THERMOS)
Capacity	340 g
Item Weight	0.5 Pounds

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