These are great water bottles. One of ours got damaged in a way we wouldn't have expected, from previous reviews, but Inah was excellent on customer support and sent a replacement out really quickly a... See more
Company replied
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I’ve been using free sports bottles or reusing spring water bottles instead of spending money on decent bottles. …I suppose because of bad experiences in the past with leaks. However these bottles wh... See more
Company replied
I recently bought the insulated steel travel mug for myself and a kids stainless steel water bottle for my daughter. I also got a deal to get a 750ml water bottle free when you spend £30. Absolutely l... See more
Bought the kids water bottles with matching lunch bags. The bottles are great and the straws make them extremely easy to clean. There was a bit of loose stitching on one of the lunch bags, Inah fro... See more
Company replied
Company details
- Glassware Store
- Fashion Accessories Store
- Gift Shop
- Home Goods Store
- Sporting Goods Store
- Sports Accessories Wholesaler
About ION8
Written by the company
ION8 is a British drinkware brand based in Dundee. We make leak-proof water bottles, kids' bottles, travel mugs and flasks — designed so a bottle can go in a bag next to a laptop and stay where you put it. Every bottle in the range is leak-proof. It's the thing we design for first.
Primo — one bottle, three lids
Primo is designed to adapt. Every lid fits every Primo bottle, in every size — Urban for the commute, Revive for training, Roam for the outdoors. Change the lid, keep the bottle.
Triple-wall vacuum insulation with an internal copper coating keeps drinks hot or cold for up to 10 hours, and the outside stays dry — no condensation on a desk or in a bag. Primo won a Red Dot Design Award in 2026. From £29.99, with lids sold separately at £12.99.
Official NBA and NFL bottles
Officially licensed team bottles, built to the same standard as the rest of the range. Same leak-proof lid, same wide opening, in team colours.
We also work with MotoGP and the British & Irish Lions.
Bottles for school
Kids' bottles built for the bag they actually live in. Leak-proof, dishwasher safe, and a wide opening so they can be cleaned properly — not just rinsed. Sizes from 350ml.
Matching lunch bags and slings are available alongside the bottles.
Shop kids' bottles · Lunch bags
Spare parts, not replacements
A worn seal shouldn't mean a new bottle. We stock replacement lids, seals, straws and filters for the current range. ION8 is certified carbon neutral across all operations, and holds a German Design Award and a King's Award.
What to know about ION8
Written by the company
- Leak-proof across the whole range
- Every ION8 bottle, mug and flask is leak-proof. It can go in a bag next to a laptop, a change of clothes or a packed lunch and stay where you put it. It's the thing we design for first.
- Lids, seals and straws sold separately
- A worn seal shouldn't mean a new bottle. We sell replacement lids, seals, straws and filters for the current range, so a bottle can be kept going rather than replaced.
- Hot or cold for hours
- Insulated ION8 bottles use triple-wall vacuum insulation with an internal copper coating. Drinks stay hot or cold for hours, and the outside stays dry — no condensation on a desk or in a bag.
- Bottles for school and lunch bags
- ION8 kids' bottles are built for the bag they actually live in. Leak-proof, dishwasher safe, and a wide opening so they can be cleaned properly. Matching lunch bags and slings are available too.
- One bottle body, three lids
- Primo is our modular range. Every lid fits every Primo bottle in every size, so a straw lid for the commute and a screw top for the weekend work on the same bottle. Lids are sold separately from £12.99.
- Personalised and engraved
- Bottles, travel mugs and flasks can be personalised with a name. These are made to order, so they can't be returned unless faulty.
- Free UK delivery over £40
- UK orders over £40 ship free on Royal Mail Tracked 48, with Tracked 24 available as an upgrade. Europe is free over £60, and the rest of the world over £70.
- Designed in the UK
- ION8 is a British drinkware brand based in Dundee. The Primo range won a Red Dot Design Award in 2026, and ION8 holds a German Design Award from 2024 and a King's Award from 2025.
- Certified carbon neutral
- ION8 is certified carbon neutral across all operations. Products are designed to be reused rather than replaced, which is why spare parts are stocked for the current range.
- Buying from the US
- US customers should order from ion8.com, which carries the core collection and ships domestically. The UK site ships internationally, but shipping costs apply.
30 days to change your mind
Start a return yourself, in a few clicks
ION8 makes leak-proof water bottles, kids' bottles, travel mugs and flasks in the UK. If something isn't right, you have 30 days from the day it arrives to send it back for a full refund — unused and in its original packaging.
Returns go through our online portal, so there's no waiting on a reply. If a bottle turns up faulty, we'll replace it even if it's been used. Return postage is yours to cover.
Contact info
Dundee, United Kingdom
- 01382800683
- help@aydya.co.uk
- ion8.co.uk
Spend £30, choose a free bottle
4.5
Excellent
3K reviews
Asks customers to review
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Replied to 36% of negative reviews
Typically replies within 1 week
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Great service and the item is…
Great service and the item is excellent. Also the availability of spare parts and extra items.
2 August 2026
Brilliant bottles only thing i wish u…
Brilliant bottles only thing i wish u had the 2 kids ones i got in the steal bottles but they are Brilliant
30 July 2026
Highly recommend
Highly recommend. Easy to view jewellery online & to order. Delivered in very secure packaging & very quickly. Earrings were presented beautifully in a soft suede wallet. Would definitely buy from Solace Jewellery again.
2 August 2026
Peeling
Good bottle - doesn’t leak but the pictures on both kids bottles have started to peel after a couple of weeks even though washed as advised
2 August 2026
Ordering easy and prompt delivery
Ordering easy and prompt delivery, love the water bottle keeps my water cold for hours
2 August 2026
IO8 Water Bottle 720ml — ★★★★★
I’ve been really happy with this bottle. It keeps drinks properly cold for hours, which is exactly what I wanted for daily use. The design makes it easy and comfortable to drink from — no awkward angles or spills. As a bonus, it fits perfectly in my Mini Cooper SE’s cup holder/door compartment, so it’s become my go-to bottle for driving around. Great combination of function and practicality — highly recommend if you want something that performs well and fits neatly in a car.
28 July 2026
Speedy delivery.
28 July 2026
Can’t recommend enough
Purchased numerous times, I Can’t fault these bottles, great quality.
No more leaky school bottles and finally a bottle that lasts. I like how I can buy the parts needed instead of replacing with another bottle.
All of us in the house now use these bottles.
My son has swallowing difficulties so the thick straws allows him to drink his thickened fluids perfectly with no struggles. I was surprised that speech and language were not aware of these bottles.
Ion8 you really should promote yourself within the speech and language/Hospital.
Orders are always processed quickly with fast delivery.
5 August 2026
Unprompted review
Enjoying my new drinks bottles
Very excited to receive my bottles including the 3rd free one. I chose them because all my grandchildren have them. Bottles have been very successful and as you claim don’t leak and even the youngest at two can easily open it to have a drink when they want I’ve found them especially good to use while I’ve had a broken wrist and ankle and need drinks that aren’t going to get knocked over leak in my bag etc.
29 July 2026
robust and leak-free
own several of these - robust and leak-free. Had one that leaked from new (bought through amazon), emailed Ion8 customer service directly and Inah sourced a replacement bottle. New bottle is of course leak-free and excellent. Highly recommend the steel personalised bottle, that's the one I carry with me everywhere.
20 July 2026
Unprompted review
Easy to understand website
Easy to understand website, easy to buy, free gift, quick delivery, great product keeps drinks cold for hours.
29 July 2026
Love ION8 only water bottle i will buy…
Love ION8 only water bottle i will buy keeps ice in all day even in the heat
28 July 2026
Cap appears to leak a little.
31 July 2026
Best water bottles by far
Fast delivery, super impressed with the bottles. As a mum I have bought many water bottles for my children but these are by far the best.
30 July 2026
It does exactly what the advertisement says
The lid goes right back and not in the way
It doesn't leak only if grandchildren screw it on wrong lol
No pipe to grow mould, easy to clean.
Can't wait for it to go through its paces at school over the next few months
Quality is very good, love the Space and Kitty ones we got. Kept updated on delivery
26 July 2026
A great product, very useful in a heatwave!
Bottles arrived in good time, just as described.
I already had some of your smaller bottles, having bought them from TKMaxx a few years ago, and had been on the lookout for larger ones. The opening button is a little stiff, compared with my old ones, but no doubt will ease up with use. Altogether a great product, and very useful for outings in a heatwave!
31 July 2026
Great communication and sorted out an…
Great communication and sorted out an issue very quickly for me. Thank you. They are the only bottles I buy for my kids
28 July 2026
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