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Small size,big adventure
OISIZ Rainbow Kids Water Bottle
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.
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Keep 24H Cold
OISIZ kids water bottle uses triple-layer insulation technology to keep water cold for 24 hours.
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100% Leakproof
Bottle is 100% leak-proof with a flip-close lid,so you can say goodbye to water spills and messes.
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Dishwasher Safe
OISIZ kids water bottle is dishwasher safe, so cleaning is a breeze! No more scrubbing by hand!
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Cup-holder Friendly
OISIZ kids water bottle is cupholder-friendly, making it easy to carry wherever you go.
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Easy to Carry
OISIZ kids water bottle has a soft silicone handle that is flexible, portable and comfortable.
Premium material
Why We INSIST on Choosing 316 SS
At Oisiz, we use 316 stainless steel for the interior of our kids' cups and 18/10 stainless steel for the exterior. Although 316 SS is more expensive than traditional 18/10 SS, 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
Transparent Spout
A transparent spout helps parents to see through and avoid dirt hiding inside. Cleaning the straw and the spout with the small brush is super easy.
Wide Open Mouth
The large opening allows you to quickly put in ice and is very easy to clean.
Silicone Stripe
Comfortable for kids to carry around,soft silicone handle that is flexible, portable and comfortable.
Silicon Non-slip Bottom
Provides a gentle, quiet set-down when the bottle is placed on any surface, protecting it from cracks and damage.
Explore More From OISIZ
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Thoughtful Service
Enjoy peace of mind with our thoughtful service.We stand behind our product’s quality and durability.If you ever encounter an issue, we've got you covered for life.
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40oz City Pop Tumbler
Meet our 40oz tumbler-your ultimate hydration companion! It’s leak-resistant,features a silicone straw and comes with a versatile sip-or-swig lid. It keeps your drinks ice-cold for up to 36 hours!
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Waste Reduction & Sustainability
Choose our bottle for a greener planet! By ditching single-use bottles and cups, you’re helping to reduce waste and protect the Earth. Small changes make a big impact—let’s make a difference together!
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Green Power
Harnessing the power of the sun, we use solar energy in our production process. It’s our way of cutting down on carbon emissions and supporting a cleaner, greener future.
AH
August 16, 2025
Good: This tumbler is a great option if you want a stainless steel tumbler for your kids but not spend $$. It even has a bottom rubber so the tumbler doesn’t get dented or make that “ding†sound when you put it down. Love the color options and hoping they will make more pastel options.Bad: the mouthpiece is horrible. It is weak and keeps breaking! I have bought and returned this item a few times and wish they could just send me a couple mouthpiece replacements so I don’t have to make a complete refund.Update: customer service reached out after writing this review and sent us replacement lids right away. Thank you!
Aaron/Inga Golombek
August 8, 2025
These water bottles are the best. They don’t leak and the spout doesn’t pop open when it’s thrown into a sports bag. They keep water cold and are the perfect size. My son is in first grade and my daughter in preschool. They hold enough and easily fit into cup holders and the side of backpacks. Run great through dishwasher. 10/10 recommend
Chrisshane
May 25, 2025
The design was great. It was Lee proof it kept temperature well as in a heart and it’s easy to carry, it can be stuffed in the bag side, It was easy to open, And the water retention.
Terry V.
May 23, 2025
I love this water bottle. Water stays cold for a long long time leak proof Perfect Design
JFil
April 28, 2025
Great Size and design. Easy to open and keeps drinks cold. Rubber bottom is good for kids. The top of straw broke where they could not get any water out
Janet L.
April 7, 2025
Great size and color. Not too heavy when full but enough water for taking to games or school.. Great value!
Kassie
April 1, 2025
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!
And Roid
March 24, 2025
Everything so far has been good with this bottle. It has been a bottle for juice and water for a 4 year old for 3 months now.She has been gentle with it as far as I can tell. No dings in the body or top, no scratches. No loose pieces.But this week at school the mouthpiece that flips up suffered a broken tab. That tab allows it to rotate and holds it down on the cap to create suction. With that tab broken, the suction is gone and there’s not a whole lot of use for the bottle, except maybe as a metal cup.Good side is, the exterior still is in great shape. No issues running this through the dishwasher either.UPDATE: The company reached out to me after my review that mentioned a broken tab on the spout. I wasn't aware that there was a long warranty on the product. The customer service was great and very responsive and sent out a new lid with straw in the original color that I ordered. It arrived quickly!I updated my rating from 3 stars to 4 for the great service.
olaf oest
January 7, 2025
Alles gut
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