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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Thermos 12 Ounce Stainless Steel Vacuum Insulated Straw Bottle, Space Unicorn

Product ID: 448966637

Details

Brand
Thermos
Capacity
340 g
Colour
Purple
Recommended uses for product
Water
Special feature
Dishwasher

🚰Hygienic covered pop-up straw

❄️Keeps drinks cold 12 hrs

🛡️Durable 18/8 stainless steel

¥12151

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Sip in Style, Stay Cool All Day!

CLEAN GERM FREE - Removable, covered silicone straw keeps germs out and cleaning easy—because hygiene matters.
STAY CHILL ALL DAY - Vacuum insulation locks in cold for a full 12 hours—hydrate like a pro.
BUILT TO BRAVE THE DAY - Premium 18/8 stainless steel resists drops and dings, perfect for on-the-go hustle.
DISHWASHER SAFE DURABILITY - Tough enough for daily use and dishwasher safe, making busy mornings a breeze.
KID APPROVED CARRY COMFORT - Lightweight design with soft-touch handle and push-button lid for effortless sipping.

The Thermos 12 Ounce Stainless Steel Vacuum Insulated Straw Bottle combines advanced vacuum insulation technology with durable 18/8 stainless steel construction to keep drinks cold for up to 12 hours. Designed with a kid-friendly push-button lid, soft-touch carry handle, and hygienic covered straw, this lightweight bottle is perfect for daily use and easy cleaning, making hydration effortless and stylish.

Specifications

ASIN	B09J92YXNB
Age Range Description	Kid
Base Diameter	2.7 Inches
Best Sellers Rank	209,944 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 590 in Insulated Bottles
Brand Name	Thermos
Cap Type	Straw Cap
Capacity	340 g
Colour	Purple
Customer Reviews	4.7 4.7 out of 5 stars (57,020)
EU Spare Part Availability Duration	12 Hours
Global Trade Identification Number	00041205753643
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 centimetres
Item Type Name	FUNTAINER 12 Ounce Bottle
Item Weight	0.25 Pounds
Manufacturer	THERMOS
Manufacturer Part Number	F4102UC6
Material Type	Stainless Steel
Model Name	FUNTAINER 12 Ounce Bottle
Model Number	F4102UC6
Number of Items	1
Number of Packs	1
Pattern	Cartoon
Product Care Instructions	Machine Wash
Recommended Uses For Product	Water
Special Features	Dishwasher Safe, Double Wall, Lightweight
Theme	Fantasy, Space
UPC	041205753643
Unit Count	1.0 count
With Lid	Yes

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¥12151

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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