Meet our awesome leak-proof Kids’ Stainless Steel Water Bottle, keeping things cool for 24 hours and safe with premium 316 Surgical-Grade Stainless Steel and BPA-free straw caps. And guess what? It’s dishwasher-safe for super easy clean-up and has a see-through spout to keep things squeaky clean. Perfect for school adventures, picnics, or any rad road trip! 🚀🌈
As kids grow up,we accompany them in their journey of exploration,help them discover their true passions,and encourage them to pursue their dreams.Our bottle wholeheartedly supports every phase of their lives, meeting their needs,backing their efforts,and illuminating each precious moment.
Product Video
Why We INSIST on Choosing 316 Stainless Steeel
At OISIZ, we use 316 stainless steel for the interior of our kids' cups and 18/8 stainless steel for the exterior. Although 316 Stainless Steel is more expensive than traditional 18/8 Stainless Steel, it offers superior performance and peace of mind for parents. It’s more corrosion-resistant and easier to clean, making it ideal for holding beverages and juices.
Product Details
Description
The OISIZ Rainbow Kids Bottle is crafted from premium SUS 316 stainless steel, and it is BPA and lead-free for a safe drinking experience. Designed with kids in mind, it features a 100% leak-proof straw lid, ensuring mess-free hydration on the go.
The transparent lid makes it easy for parents to spot and clean any residue, while the triple-layer insulation keeps water ice-cold for up to 24 hours, perfect for long days at school or outdoor adventures. The bottle is dishwasher safe, making cleanup a breeze for busy parents.
Built for durability, the silicone bottom helps eliminate noise when placing it on surfaces, and provides added protection against cracks. With a durable powder coating, this bottle stands up to everyday use, ensuring it stays looking as vibrant as your child feels!
More Colors Than Any Bottle on the Market
Available in 20+ colors — from Light Purple and Glacier to Navy Camouflage, Dream, and Santa Claus — there's a Rainbow bottle for every personality. Perfect for gifting, collecting, or matching with the whole family.
Dimensions
10 oz
2.9"W x 6"H
0.63 Pounds
14 oz
2.9"W x 7"H
0.66 Pounds
18 oz
2.9"W x 8.5"H
0.81 Pounds
Product features
24H cold
Leak-proof when closed
BPA, lead, and phthalate-free
Premium 316 Stainless Steel
Transparent straw lid
Dishwasher-safe
Cupholder friendly
Wide opening for cleaning and adding ice
Convenient silicone carry loop
Warranty: Lifetime
The OISIZ Rainbow Kids Bottle is crafted from premium SUS 316 stainless steel, and it is BPA and lead-free for a safe drinking experience. Designed with kids in mind, it features a 100% leak-proof straw lid, ensuring mess-free hydration on the go.
The transparent lid makes it easy for parents to spot and clean any residue, while the triple-layer insulation keeps water ice-cold for up to 24 hours, perfect for long days at school or outdoor adventures. The bottle is dishwasher safe, making cleanup a breeze for busy parents.
Built for durability, the silicone bottom helps eliminate noise when placing it on surfaces, and provides added protection against cracks. With a durable powder coating, this bottle stands up to everyday use, ensuring it stays looking as vibrant as your child feels!
More Colors Than Any Bottle on the Market
Available in 20+ colors — from Light Purple and Glacier to Navy Camouflage, Dream, and Santa Claus — there's a Rainbow bottle for every personality. Perfect for gifting, collecting, or matching with the whole family.
Is the OISIZ Rainbow Kids Bottle available in a 14 oz size?
Yes. This product page is for the 14 oz Rainbow Kids Bottle. The Rainbow line also includes 10 oz and 18 oz sizes, so families can choose a capacity that best suits their child and daily routine.
What is the Rainbow Kids 14 oz bottle made from?
The bottle uses 316 stainless steel on the interior and 18/8 stainless steel on the exterior. OISIZ also states that the bottle is BPA, lead and phthalate free.
Does the 14 oz Rainbow Kids Bottle have a straw?
Yes. It uses a transparent straw lid designed for kid-friendly sipping. The see-through drinking area also makes it easier for parents to spot residue during cleaning.
Is the Rainbow Kids Bottle leakproof?
The bottle is designed to be leakproof when the lid is properly closed, helping reduce spills in backpacks, lunchboxes and during everyday travel.
How long does the 14 oz kids bottle keep water cold?
OISIZ states that the insulated bottle keeps drinks cold for up to 24 hours. Actual performance can vary depending on starting temperature, use and surrounding conditions.
Is the Rainbow Kids Bottle dishwasher safe?
Yes. The current product page lists the Rainbow Kids Bottle as dishwasher safe, making routine cleaning easier for busy families.
Does the 14 oz bottle fit in a car cup holder?
Yes. OISIZ lists the bottle as cupholder friendly. Cup-holder dimensions can vary between vehicles, so fit may differ in some cars.
Is the 14 oz Rainbow Kids Bottle good for school?
The 14 oz size is designed for everyday kids hydration and works well for school days, picnics, sports, road trips and family outings. Its carry loop, straw lid and compact shape make it practical for daily use.
Can I add ice to the Rainbow Kids Bottle?
Yes. The wide opening is designed to make adding ice easier and also gives better access for cleaning the inside of the bottle.
Are replacement lids and straws available?
OISIZ has separate accessories for Rainbow Kids Bottles, including replacement lids for 10 oz and 14 oz bottles and replacement straws. Check the accessories collection for current availability and compatible options.
Customer Reviews
Overall rating: 4.8 / 5 from 349 reviews.
HER: I really like this water bottle different brand and taller. It doesn't leak and it's easy to use, but I wish I had a shorter version to take in my car. Something that's not so tall it will fall over.
ME: Hmmm. orders shorter bottle with good reviews
HER: This is too small. It won't hold enough water.
ME: You said you wanted a shorter bottle to fit in your car. This will hold 14 ounces, that's a lot.
HER: I don't think it will work but I'll give it a try.
ME: It can't hurt.
HER: Hey, this really works.
It became her go-to. So buy it already. Yeah, it's a kid's sippy cup, but it works great for adults in cars.
Better than Yetti
Tested against a yeti with same 10 ice cubes in each in 24 hours the oisiz won, as you can see from the photos. Definately buy again.
Everything I expected.
Everyday use since I bought it a few weeks back. Absolutely leak proof, very tough cup and keeps my water ice cold for hours. Very satisfied and the handle is very convenient!!
Best Baby Bottle
It looks great and cute bottle for my baby girl. She loves the color and unicorn on it. It came with two straws for the replacement and handle to carry. I would recommend it to everyone for their babies as they have different colors to choose.
Terrific purchase!
Got this as a gift for my little niece starting 3rd grade in just a few weeks and I must say, much more impressed than most others at the store! Not only sturdy built product but it comes with multiple straw replacements and a straw cleaner!! I couldn't believe it!
Great construction
The bottle itself is very sturdy. Comparative to other brand names. I'm very pleased with the weight of it. All of the straw components are hard plastic, not silicone which should stand up to my son biting it! I'm very happy it's dishwasher safe as well.
Solid water bottle for kids
I’m a big fan of this water bottle bottle. It’s not too big, which I wanted since it is for my kids. So far I’ve found it does a nice job insulating, keeping water cool for the day at camp. And a bonus is the cleaner for the straw - comes in handy not just for this but for all my water bottles. A nice find!
Awesome Water Bottle
I love this water bottle. First I really love the mint green color. I love that it has a handle so it is easy for kids to carry. The silicone bottom is nice so it doesn't make a loud noise when it is set down and it doesn't slide either. It comes with two straw pieces and a straw brush. It is easy to clean and keeps water cold. It is leak proof. I will definitely be buying more.
Love this water bottle
From the packaging to the design. You know that this metal insulated water bottle was built to last. First off the design is very cute for my 2 year old daughter and she loves to carry it around everywhere she goes. The rubber handle on top makes it easy to do just that. Cleaning the bottle is a breeze and I also love the fact that they give you two straws and also a cleaning stick with bristles so you can really get the straw clean after use. 100% recommend this purchase.
Very impressed!
My daughter is going to absolutely love this unicorn water bottle. It's made out of 316 stainless steel and is insulated so it should keep her water cool all day at school. It comes with two straws as well as a nifty brush to clean the hard to reach places with! The paint job is adorable....pretty much what any 3-8 year old girl will love. So far I would say the quality seems on par with the big players in the kids water bottle industry - Coleman, thermus, CamelBak, etc.
Great for kids!
This water bottle is perfect for kids. The straw doesn't stick so it's easy to open, which is an issue with other similar water bottles we have. The bottom has a soft plastic which is perfect for my kids who often ser the water bottle down with a 'bang.' But honestly, my favorite thing about this water bottle is the fact that the packaging is all cardboard/paper. There is no unnecessary plastic in the packaging of this water bottle so I was able to recycle it all!
The color received was not as expected. The pink cap is fine, but the pink to purple gradiation was not as depicted when ordering. There is no real pink on the top part of the bottle, just a lighter purple. Disappointing, since my granddaughter chose the bottle because of the pink color.
So convenient
Love this little bottle. I work at an outdoor science camp and see this bottle a lot with our elementary school groups. Very sturdy, small but not too small, and great color selection. I like the rubber bottom that helps the bottle "stick" without sliding off the tables. And the bottle comes with 2 straws and a pipe cleaner! I love it! Fairly well insulated to keep cold drinks cold. Also, that's a glade spray bottle for scale lol. I hope this helps!
Very nicely made and good looking product
Ordered this for training my child and was impressed with the build quality and overall appearance (pink). The cup is very clean on the inside and even if it is dishwasher safe, I suggest hand washing it to prolong it's life. The seal is very tight, no leaks and even when open, there is no spill unless you such at the spout. I recommend this for any kid cup needs and will probably pick 2 more for different needs, daycare etc.
Perfect for a 4 year old
This water bottle is going to be perfect for my granddaughter when we go to DisneyLand, it’s the perfect size for a 4 year old. I’ve already tested out how it keeps water cold all day long. Such a plus that it can go into the dishwasher, and the rubber on the bottom to keep from marking up tables. This also comes with a 100% satisfaction guarantee, so you can’t go wrong with purchasing it. I’ve included a picture next to a 20 oz size bottle for size reference for little hands.
Toddler approved!
I got this bottle for the my 2 year old. She’s a very adventurous little thing that (as expected) has toddler butterfingers. It’s holding up nicely! I absolutely love the grapefruit color, it’s a nice coral, not too pink. My daughter loves carrying it around by the little handle. It’s mostly leak proof when the straw is closed, but it will pour out if held upside down. It’s actually been so popular in our house, my son is asking for his own!
My toddler loves this water bottle! He wanted one like his brothers all have for school so I ordered him this one and it works great. He loves the pattern and it holds the perfect amount of Ice water. A tiny bit heavy (he’s little) when filled up. The little silicone bottom is a nice touch so it doesn’t scratch the table and he loves the handle.
This thing is a tank! I put it in the hands of my daughter and she takes it absolutely everywhere, so as a result, it gets thrown and beat-up regularly. Having a bottle with a straw and than be put down or flipped up is very useful. The waterflow is not restrictive and allow a large amount of water to be pulled through the straw and mouthpiece. The bottle creates such a tight seal (which is good), but you have to be careful not to over tighten as it can be difficult for the kids to open.
My son needed a cup for school for water because it gets extremely hot here in the desert. The quality is really good it doesn't leak at all even after being bounced around in his backpack (3rd grade) I can fill it with water and ice and when he gets home from school there's still ice in the cup. It definitely keeps drinks cold. I used a cricket machine to put his name on it and since the cut doesn't sweat his name stays on. The color is exactly as shown and opening the straw is simple and easy for anyone! The cup is definitely worthy of 5 stars!
I'm about 70 years past the point of being a kid, but this was the only water bottle I could find that would fit the frame of my e-bike. It's certainly well made, comes with an extra straw and a brush for cleaning it, the straw function works great, and the plastic bottom makes it nice for placing on furniture.
Je l'ai prise pour l'entrée au CP de ma fille. Pratique, de bonne contenance qui passe au lave vaisselle. J'en ai tout de suite acheté une deuxième ! Cela fait plusieurs mois maintenant et je suis toujours aussi contente !
The 14oz size is perfect for her, offering just the right amount of water for daily use. The straw lid makes it easy for her to drink without spilling, which is a huge bonus, especially when we’re on the go. The design is kid-friendly, with bright colors that she loves. It’s also made of durable, BPA-free material, which gives me peace of mind knowing it’s safe for her.The bottle is easy for my toddler to hold, and the straw is soft but sturdy enough to withstand frequent use. I also appreciate how easy it is to clean .a big plus for any mom! Overall, it’s a great water bottle for toddlers, and I highly recommend it for anyone looking for a spill-proof, durable bottle for their kids.
Está muy bien la botellaAl principio parecía que costaba mucho beber por la pajita, hay que cortar el plástico por debajo del tapón (al lado de la pajita) para que pase aire.
I’m so inlove with this water bottle, easy to open and it stores cold fluid really well for hours and the quality is A one I didn’t have one problem with this bottle it have been 2 weeks and it’s still going strong
This is not the first time that I buy one of these.Good quality ,they don’t leak, perfect size for my 4 year old,easy to open , maintains the coldness and ice , worth the price. I personalized it for my son.
Love the bottle and design! Big issue is that the the drink spout just stopped working only 8 weeks after purchase, so no water draws up from the straw to the mouthpiece making the bottle unusable.
Edit**They replaced the broken one very quickly!!! Very nice customer service and quick delivery for the replacement.Bought 2 of these, one for each child. My son’s straw that is attached to the lid broke. Attempted to contact the customer service and have not heard back. Super bummed as it says there is a lifetime warranty.
Is the OISIZ Rainbow Kids Bottle available in a 14 oz size?
Yes. This product page is for the 14 oz Rainbow Kids Bottle. The Rainbow line also includes 10 oz and 18 oz sizes, so families can choose a capacity that best suits their child and daily routine.
What is the Rainbow Kids 14 oz bottle made from?
The bottle uses 316 stainless steel on the interior and 18/8 stainless steel on the exterior. OISIZ also states that the bottle is BPA, lead and phthalate free.
Does the 14 oz Rainbow Kids Bottle have a straw?
Yes. It uses a transparent straw lid designed for kid-friendly sipping. The see-through drinking area also makes it easier for parents to spot residue during cleaning.
Is the Rainbow Kids Bottle leakproof?
The bottle is designed to be leakproof when the lid is properly closed, helping reduce spills in backpacks, lunchboxes and during everyday travel.
How long does the 14 oz kids bottle keep water cold?
OISIZ states that the insulated bottle keeps drinks cold for up to 24 hours. Actual performance can vary depending on starting temperature, use and surrounding conditions.
Is the Rainbow Kids Bottle dishwasher safe?
Yes. The current product page lists the Rainbow Kids Bottle as dishwasher safe, making routine cleaning easier for busy families.
Does the 14 oz bottle fit in a car cup holder?
Yes. OISIZ lists the bottle as cupholder friendly. Cup-holder dimensions can vary between vehicles, so fit may differ in some cars.
Is the 14 oz Rainbow Kids Bottle good for school?
The 14 oz size is designed for everyday kids hydration and works well for school days, picnics, sports, road trips and family outings. Its carry loop, straw lid and compact shape make it practical for daily use.
Can I add ice to the Rainbow Kids Bottle?
Yes. The wide opening is designed to make adding ice easier and also gives better access for cleaning the inside of the bottle.
Are replacement lids and straws available?
OISIZ has separate accessories for Rainbow Kids Bottles, including replacement lids for 10 oz and 14 oz bottles and replacement straws. Check the accessories collection for current availability and compatible options.
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