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 Water Bottle with Straw, 12oz, Blue | Kids Stainless Steel Insulated Water Bottle, Keeps Drinks Cold Longer for School & Play, BPA-Free

Product ID: 1322038

Details

Brand
THERMOS
Capacity
12 fluid
Color
Navy
Recommended Uses For Product
Water
Special Feature
Cold 12 Hours

💧Leak-proof & sweat-proof design

🧼Removable straw for easy cleaning

❄️Keeps drinks cold 12 hrs

Rp816629

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Description

❄️ Stay cool, stay ahead — hydration that keeps up with your kid’s hustle!

DURABILITY THAT LASTS - Premium 18/8 stainless steel withstands drops and dings—built for everyday adventures.
KID APPROVED ERGONOMICS - Lightweight, compact, with a soft-touch carry handle designed for small hands and easy grip.
HYGIENIC EASY TO CLEAN - Pop-up straw with protective cover is removable and dishwasher safe for hassle-free maintenance.
12 HOUR ICE COLD HYDRATION - Vacuum insulation locks in chill all day long, perfect for active kids on the go.
TRUSTED HERITAGE MODERN DESIGN - Backed by 120 years of Thermos innovation, combining reliability with vibrant, fun colors.

The THERMOS FUNTAINER 12oz water bottle features double-wall vacuum insulation to keep drinks cold for up to 12 hours. Crafted from durable 18/8 stainless steel, it’s lightweight and kid-friendly with a push-button flip-top lid, integrated soft-touch handle, and a hygienic removable straw. BPA-free and dishwasher safe, this bottle is designed for everyday school and sports use, backed by Thermos’ 120-year legacy of quality.

Specifications

ASIN	B00DAPQV0K
Additional Features	Cold 12 Hours, Double Wall
Age Range Description	Kid
Base Diameter	3.1 inches
Best Sellers Rank	#44 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #7 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 (48,026)
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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Rp816629

Duties & taxes included

In stock

Sold byAmazon IndonesiaDelivered 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 Indonesia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 week ago

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