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ION8 Reviews 

2,606
TrustScore 4.5 out of 5

4.5

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Review summary

Created with AI, based on recent reviews

Evaluating 1,122 reviews, reviewers overwhelmingly had a great experience with this company. Consumers frequently praise the excellent quality of the water bottles, noting the durable materials, vibrant colours, and practical features like one-handed opening. Buyers also mention that orders arrive quickly and safely, while the support staff handles any questions with remarkable promptness and care. Some people were dissatisfied with unexpected leaks occurring during daily use or school trips. A few reviewers also noted that bottle lids broke prematurely or printed designs began peeling off after just a few washes. Additionally, a handful of consumers experienced delays when trying to reach customer service through automated tools.

What people talk about most

Product

Customers had positive experiences with product, noting they are durable, stylish, and effective at keeping... See more

Quality

Users describe positive interactions with quality, noting that the bottles are well-made, durable, and... See more

Delivery service

People report positive experiences with delivery service, highlighting that parcels arrive quickly and... See more

Customer service

Consumers find customer service to be positive, frequently praising helpful support representatives who... See more

Order

Reviewers highlight positive aspects of order processes, noting that the website is easy to use and items... See more

Reviews shaping this summary

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Company replied

Rated 5 out of 5 stars

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

  1. Glassware Store
  2. Fashion Accessories Store
  3. Gift Shop
  4. Home Goods Store
  5. Sporting Goods Store
  6. 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

ION8 Primo modular insulated water bottle range in multiple colours

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.

ION8 Primo Roam screw-top water bottle with silicone grip sleeve

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.

Discover Primo  ·  Primo lids

Official NBA and NFL bottles

Official NBA licensed leak-proof water bottle from ION8 in team colours

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.

ION8 Game Day Series official NFL licensed leak-proof water bottle

We also work with MotoGP and the British & Irish Lions.

NBA x ION8  ·  NFL x ION8

Bottles for school

ION8 leak-proof kids water bottle in Recyclon with space design, 350ml

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.

ION8 insulated kids lunch bag with matching water bottle

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.

Lids and seals  ·  Shop all bottles

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.

Read the full returns policy


Contact info

Spend £30, choose a free bottle

UK orders. Free UK delivery over £40 on Royal Mail Tracked 48.

4.5

Excellent

TrustScore 4.5 out of 5

3K reviews

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Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 36% of negative reviews

Typically replies within 1 week

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4.5

All reviews

(2,606)

1,128 reviews in the last 12 months

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Rated 5 out of 5 stars

Amazing customer service

Really impressed by Ion8's customer service. The design on one of our bottles started peeling off after only 2 months of use (which I've never had with one of their bottles before) and Inah arranged for a replacement to come straight out to me. Ion8 is a brand I liked already and they impressed me again today!

22 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Ion,

A design peeling after just two months when you've never had that happen before with our bottles - we completely understand why that caught you off guard, and we're really glad Inah was able to get a replacement sorted for you straight away.

It's always frustrating when something doesn't perform as it should, especially with a product you've trusted before, so thank you for giving us the chance to put it right. Knowing you were already a fan of the brand and that this experience has reinforced that trust means a great deal to us.

We hope the replacement bottle serves you well for years to come.

The ION8 Team

Rated 5 out of 5 stars

Phenomenal Customer Service

Had an issue with a bottle that was sent. I sent something through with photo evidence. Inah was incredible and dealt with my query in super sonic time. My initial query was sent at 11:30 PM on Saturday and the next thing I know I had an email through with a replacement order receipt at 4am on Monday and it was at the door by Thursday! Just incredible service. I had no expectation of a complete replacement but very much appreciate it. Inah was an absolute pleasure in the couple of exchanges we had. Thank you very much to Inah and Ion8. Our family were loyal customers anyway but this has cemented it!

17 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Thursday,

Phenomenal customer service - that's exactly what we aim for, and it's brilliant to hear we hit the mark for you. We're really glad our team could make such a positive difference to your experience.

Thank you for taking the time to share this.

The ION8 Team

Rated 5 out of 5 stars

Brilliant customer service

In November last year bought the flask and water bottle, which I use daily, the flask has never been in the dishwasher always washed by hand but the seal has gone, I took photos and emailed, had a response to say all sorted and it arrived, coffee is no longer leaking from my flask. You get what you pay for, don’t hesitate to buy this product coffee stays warm all day, inah assisted me very grateful :)

14 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Matt,

Coffee no longer leaking, staying warm all day, and a seal replaced without fuss after months of daily use - that's a proper result, and we're really pleased Inah could sort that for you so quickly.

You're absolutely right that hand-washing is the gentler option for seals, but even with the best care, daily use over several months will naturally wear them down - so it's great that you reached out with photos and we could get a replacement to you promptly. The fact that your flask and bottle have become daily essentials tells us they're doing exactly what they're designed to do.

Thank you for taking the time to share this, Matt - and for the kind words about Inah's help.

The ION8 Team

Rated 1 out of 5 stars

Disappointing experience

I bought two water bottles for my daughter and received an extra one as a gift. Unfortunately, none of the seals works properly—water leaks out when the bottles are in a backpack and even spills while drinking. I also purchased straws for the bottles, but every time we open them, water jets out unexpectedly. This is very disappointing.

2 August 2026
Rated 1 out of 5 stars

Really bad customer service

Really bad customer service. The free gift options aren't compatible with the water bottles I purchased. When I emailed to have this replaced I was told that I couldn't and that another lid would be available (not in the same style) and I would have to pay for postage. I dont see why the customer has to pay to correct something that this company has done wrong. A big company like this you would think it would be no issue to send out a replacement as a gesture of good will. Unfortunately not.

19 August 2026
Unprompted review
Rated 1 out of 5 stars

I ordered ION8 bottles and the payment…

I ordered ION8 bottles and the payment was successfully deducted from my card. Five days later, I was informed that my order had been manually cancelled and that I should simply place the order again.

The bigger issue is that no refund was actually processed, and I was given no information about when I could expect my money back.

When I contacted customer service, Stewart Cowie sent me a screenshot claiming that the order had been refunded and that the order had been cancelled after payment due to a stock allocation/fulfilment issue, despite the payment having already been successfully taken, and that, if I couldn't see the money, I should contact my card provider.

However, the screenshot he provided clearly shows that the order was manually cancelled and that the refund is still pending — not processed. The cancellation email I received from ION8 also indicates that the refund is pending.

It is extremely frustrating to be told that a refund has been issued when the company's own documentation shows otherwise. If a refund is still pending, customers should be given a clear explanation and an expected processing timeframe rather than being directed to their bank.

I expected much better customer service and transparency from ION8. I would strongly recommend improving the refund process and, most importantly, providing accurate information to customers about the status of their money.

18 August 2026
Unprompted review
Rated 5 out of 5 stars

Great bottle for people who forget to lock their bottles

I love ion8 bottles since discovering them and recently changed all my travel bottles to ion8 as I am super clumsy and always spill my drinks everywhere but ion8 has solved that!

Recently I had also dropped my biggest thermo bottle after having for less than a month and was devastated. But got in contact with ion8 and they have sent a replacement straight away! So thank you so much Ellvee from the support team for being so kind!!

12 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Sang,

"Great bottle for people who forget to lock their bottles" - what a perfect way to describe it. The fact that you've switched all your travel bottles to ION8 because they've solved your spilling problem, that's exactly the kind of real-world feedback that means so much to us.

And then dropping your biggest thermo bottle after less than a month - we can only imagine how gutting that must have been. We're really glad Ellvee could get a replacement out to you straight away and turn that around for you.

Thank you for taking the time to share this, and for trusting us with all your travel bottles.

The ION8 Team

Rated 5 out of 5 stars

Easy to order and a lovely free gift

Easy to order and a lovely free gift. Unfortunately the delivery company was very delayed with no updates. I got in contact with ION8 and Inah came back so quickly and offered help. Fortunately by this point the bottles had been delivered. Amazing bottles and great quality alongside fantastic customer service.

17 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Jemma,

The free gift was a nice surprise, and then the delivery delay with no tracking updates - we can imagine how frustrating that must have been. We're really glad Inah was able to respond so quickly when you reached out, even though the bottles had already arrived by then. Delivery carriers are outside our direct control, but knowing our team was there when you needed reassurance makes a real difference.

It's lovely to hear the bottles themselves have lived up to your expectations - quality is something we never compromise on. Thank you for sticking with us through the wait, and for taking the time to share this.

The ION8 Team

Rated 4 out of 5 stars

Problem with free gift

The quality of the bottles are fantastic and they keep cold for a couple of days. They do not leak and are superior to other bottles. I had an issue with ordering the free promotional gift and at first the company would not resolve my complaint but then they had a change of mind and sorted it out for me. Had it been resolved at first point of contact I would have given 5 stars.

8 August 2026
Unprompted review
Rated 5 out of 5 stars

Good customer service

one bottle missing from our order Inah very helpfully and promptly sorted it good customer service. the bottles are great as they don't leak and have a proper cover for the mouthpiece

15 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Ann,

A missing bottle sorted helpfully and promptly by Inah, and then the bottles themselves proving their worth with no leaks and a properly covered mouthpiece - that's the full ION8 experience right there. We're really pleased the issue was resolved so quickly for you, and that the bottles are doing exactly what they're designed to do.

Thank you for taking the time to share this.

The ION8 Team

Rated 5 out of 5 stars

Had a technical issue

Had a technical issue with the lid of my ION8 1ltr container. Sent in pictures and had a very prompt response from a lady called Inah. She was superb, she asked for a video of the issue, acknowledged everything at each stage in a friendly and professional manner. Everything sorted quickly and a new lid on its way via post. All sorted quickly and with empathy. Thank you INAH for your service in this matter.

14 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello David,

Inah's support throughout this - acknowledging everything at each stage, staying friendly and professional, and getting your replacement lid sorted quickly - that's exactly the kind of service we want every customer to experience, and we're really pleased she could help you so efficiently.

Technical issues with lids are rare, but when they do happen, having someone who listens, responds promptly, and keeps you informed makes all the difference. Thank you for taking the time to share this and for highlighting Inah's work - feedback like yours helps us know we're getting it right.

The ION8 Team

Rated 5 out of 5 stars

Superb company I love the way they are…

Superb company I love the way they are trying so hard not to wasteful to the environment. Most companies you would have a broken part of a bottle and that’s it straight in landfill. These guys are great even out of warranty they have helped me giving my son a new lid for free even tho I would have paid them.

16 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Jason,

What a thoughtful review - the environmental angle you've highlighted really resonates with us, and it's brilliant to hear that our approach to spare parts made such a difference for you and your son. You're absolutely right that most companies would simply bin a bottle with one broken component, and we've deliberately chosen a different path: designing bottles where lids, straws, and seals can be replaced individually, so the whole product doesn't end up in landfill over a small fault.

The fact that you were willing to pay for the replacement lid, but our team sent it free even though the warranty had expired - that's the kind of decision we're proud of. It costs us very little to post a lid, but it keeps a perfectly good bottle in use for years longer, and that's a win for everyone.

Thank you for taking the time to share this - it's reviews like yours that remind us why we design our bottles the way we do.

The ION8 Team

Rated 5 out of 5 stars

I brought a 1 litre insulated bottle on…

I brought a 1 litre insulated bottle on amazon. The bottle keeps my water cool all day.

I had a problem as the insulation inside cracked after a few weeks.

After speaking with Inah in customer services. Who was very friendly and helpful I now have a new product in the post.

I will update on the new bottle, great service just hope the product was a one off.

16 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Danny,

Water staying cool all day, and then a cracked insulation issue resolved by Inah within weeks - that's a proper outcome, and we're really pleased she could get a replacement sorted for you so quickly.

You're right to flag the cracked insulation - that's not something we'd expect to see after just a few weeks, and we're glad Inah caught it early. The 1-litre insulated bottles are built to handle daily use without that kind of failure, so we'll be keeping an eye on this. Your replacement should give you the full performance you were after from day one.

Thanks for giving us the chance to put things right, and we'd genuinely appreciate hearing how the new bottle holds up once it arrives.

The ION8 Team

Rated 5 out of 5 stars

Cracked bottle

I had a problem with a bottle cracking at the top. Very good support from Inah in customer services who arranged a replacement straight away.

13 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Jed,

A cracked bottle sorted straight away by Inah - that's the kind of response we always aim for when something goes wrong. We're really glad she could get a replacement organised for you so quickly, and that you took the time to mention her support here.

Cracks at the top aren't something we'd expect to see, so your feedback helps us keep an eye on quality across the board.

Take care,
The ION8 Team

Rated 5 out of 5 stars

These bottles are leakproof 100%

These bottles are leakproof 100%
I was sceptical at first but my grandson has used one for a year in primary school. Apart from a few dents on the bottom it has served us well. We have just ordered a new one for the next school year , only because my grandson would like a different design

15 August 2026
Unprompted review
ION8 logo

Reply from ION8

Hello Rosemary,

A full year in primary school with just a few dents on the bottom - that's exactly the kind of real-world durability test we design these bottles for, and we're delighted your grandson's bottle has held up so well.

The fact that you're ordering another one purely for a design change (rather than because the first one failed) is the best compliment we could receive. That leak-proof seal staying 100% reliable through a year of daily school use is what our triple-lock system is built to deliver.

We hope the new design is a hit with your grandson for the year ahead.

The ION8 Team

Rated 5 out of 5 stars

Great product & support team

Purchased a metal insulated water bottle, a plastic one and a coffee cup.

The water bottles from these guys are honestly the greatest. My kid takes the insulated one to school and even in the heatwaves it kept water freezing cold all day and even if she refilled it at school with water from the tap it actually chilled it abit due to the fact the bottles inside were still so cold even when empty. Been chucked at concrete many times, is kept in her bag upside down and doesn’t leak a drop. She loves the choice of designs. We will only buy these bottles in future!
I love my plastic water bottle as it’s the same easy to drink from design and is such a pretty colour, doesn’t drip anywhere.

I had a slight issue with my coffee cup but customer service have been amazing, the beauty of their cups is all seals and parts like the top you can get separately so they quickly resolved the issue for me. Big thank you to Inah at support who was so quick in replying and sorting it for me.
Great company.

Make the commitment and buy a water bottle from these guys, it’ll save you a fortune in the long run and to be fair I actually find their pricing very reasonable in comparison to similar companies and they certainly live up to their claims!

14 August 2026
Unprompted review

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