Things to consider when buying a water bottle for kids
Material: Water bottles made from food-safe BPA-free plastic are robust, practical, and cheaper. Stainless steel bottles are great for those avoiding plastic and are often insulating so that water will remain cold for longer. However, they can be expensive and may dent when dropped.
Easy to clean: For minimum faff, look for entirely dishwasher-safe bottles and don’t have many small parts that need removing before cleaning.
Leakproof: Choose a reusable water bottle that won’t leak, even when it falls on its side in your child’s book bag. For small children, a water bottle that is spill-proof when open is a good idea too.
Child-friendly: Make sure your child can open their new bottle by themselves; ideally, they should be able to flip the lid with one hand. Spouts and lids that are simple to close with little hands are also less likely to leak accidentally.
Ergonomic design: Younger children will get on better with a small, lightweight water bottle that curves in the middle for an easy grip. Choose stainless steel bottles decorated with powder-coated paint as they have an anti-slip rough surface.
Size and capacity: Water bottles for school-age kids need to be big enough to keep them refreshed throughout the day while still fitting neatly into their rucksack or book bag. For younger kids, who spend more time at home, the priority is finding a bottle they can hold easily as it can be refilled as needed.
Can you put other drinks in a kids' water bottle?
Ideally, stick with plain water. However, if the bottle doesn’t have too many pieces and you’re confident you can get it scrupulously clean, it should be ok to fill it with different drinks. Avoid milk, as it is quick to create bacteria, and most reusable bottle brands will suggest you don’t fill their products with fizzy drinks.
How to clean your kids' water bottle
Keep your child’s water bottles clean and hygienic by washing them daily. Use hot soapy water and a bottle brush, give them a thorough rinse and leave to dry with the top off.
If the bottle has small components such as a straw or seal, separate them before washing as grime and bacteria can hide in tiny spaces. If they are fiddly to clean, run them under hot water and then pop them in a cold water steriliser overnight.
Some water bottles are dishwasher safe but check that applies to all the bottle parts as sometimes complex lids must be handwashed.
What type of water bottle is best for school?
The Ion8 leak-proof water bottle is our choice for the overall best reusable water bottle for kids. Leakproof, robust and easy to use, even for toddlers, it’s a fantastic all-rounder. It also receives lots of recommendations from impressed parents on the Mumsnet forum.
How we chose our recommendations
We’ve thoroughly investigated the best reusable kids’ water bottles you can buy this year, including analysing real experiences and suggestions from a wide range of reliable and trusted sources. Here's how we carefully selected our top picks.
Recommendations from real parents
Many of our Mumsnet community members have experienced the challenges of finding a reliable water bottle that is easy to use yet won’t leak in their child’s school bag, and we wanted to help. So firstly, we weighed up our Mumsnetters' tried and tested reviews and recommendations on the water bottles they rate from their own experiences, including their advice on what brands to avoid, the perfect size, how best to keep the bottles clean and how much their children enjoyed using them.
Expert opinions
Leaky water bottles can cause damage to school work, equipment, and, if filled with juice, furniture and carpets, so we wanted to be confident that the bottles we recommended were reliably leakproof. It was also important that the bottles were easy to use for little ones as optimum hydration is vital to their health and happiness.
Therefore, we analysed childcare experts’ opinions on various parenting sites, extensively researched the recommendations of nursery and early years teachers, and consulted healthy eating organisation websites.
Authentic customer reviews
Finally, we evaluated the bestseller lists and scrutinised authentic reviews from various retailer sites to see which water bottles were best rated. We weighed up the pros and cons of each choice to determine which products were best suited to each stage of a child’s development.
Here are the best water bottles for kids in 2026.
Why you should trust us
Mumsnet has been helping parents make their lives easier since 2000 and, in that time, we've seen, tried and reviewed thousands of products.
As the mother of two children, our writer Gemma understands the many challenges of parenting. So she was determined to provide honest and independent advice on the reusable water bottles that will keep your kids hydrated and happy at home and school.
Our writers spend hours scouring the Mumsnet forums and online bestseller lists to find unique products real parents will love.
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