Ion8 Luma Flask Review: My New Favourite Flask

I recently bought the ION8 Luma Flask even though I have more flasks than shoes. I know this isn’t an exaggeration because I don’t actually own any shoes. I own trainers, boots and sneakers but no shoes.

Ah, hang on a sec – I’ve just realised this isn’t actually true. I do own a fab pair of chunky-soled black brothel creepers but that’s it. So, the final score is flasks 3 – shoes 1.

But enough with the football analogy, especially as I dislike football even more than I dislike shoes, on with the Ion8 Luma Flask review.

First Impressions of the Ion8 Luma Flask

There are eight colours to choose from of the Ion8 Luma Flask. Of course, I chose pink, or ‘rose quartz’ to give it its official name. It’s chunky, solid and, despite being a delicate colour, there’s nothing delicate about this flask. It feels substantial enough to knock someone out should anyone have the audacity to try and steal it from you. It’s also slightly textured, so if you are in a position where you’re trying to knock someone out with it, it’s not going to slip from your hand.

Saying that though, I don’t condone violence, so please don’t try to knock someone out with it unless you really need to.

Capacity and Cup Size

The cup size is what swung this purchase for me. As I said at the beginning, I have more flasks than shoes. Although I’ve never tried drinking tea from a shoe, I do like to take a flask of tea and a homemade protein bar down to the beach in the morning but I don’t like drinking tea from those tiny little cups you get on narrow flasks and so I’ve been taking a mug down separately with me.

This works well but when I saw an advert for the Ion8 Luma Flask with its integrated cup that holds over 300ml of liquid (i.e. a mug full), I thought, ‘Hell, yeah. I need one of these,’ and promptly bought one.

Heat Retention and Performance

I haven’t taken my flask out on any long walks or bike rides, so I can’t vouch for its thermal properties but, according to the Ion8 website, it’s got double wall insulation to keep hot and cold drinks hot and cold for over 12 hours.

What I can vouch for though is that it’s leakproof, has a machined lid that’s easy to open and close and an integrated cup that attaches seamlessly into the design with hidden magnets.

Cleaning and Maintenance

Unfortunately, unlike some of the other flasks and water bottles in the Ion8 range, the Ion8 Luma Flask has to be hand cleaned and can’t go in the dishwasher. This was almost a dealbreaker for me because I put almost everything except the cats in the dishwasher but it’s easy enough to clean I suppose. I don’t know why it can’t go in the dishwasher but my guess would be because of the magnets.

Speaking of magnets, there’s a warning on the Ion8 website that says:

WARNING: This product contains a magnet. Individuals with pacemakers or other implanted medical devices should exercise caution and consult their physician before use.

so I thought I’d just add that in there as I don’t want anyone buying this flask after reading this review and then dying because the magnets have caused a glitch in their pacemaker or something.

Summary of the Ion8 Luma Flask

In summary then, do I like the Ion8 Luma Flask? Oh yes, definitely. The main attraction for me was that it is leakproof, holds 700ml of liquid and has an integrated cup that holds 300ml of liquid, which is about a proper mug full of tea.

My only slight niggle is that it’s a tad too big to fit in my bike’s water bottle holder but as it’s leakproof, I’ll be able to bung it in my rucksack without worrying it’s going to leak all over everything in there.

Where to buy the ION8 Luma Flask

I bought my Ion8 Luma Flask in rose quartz on Amazon but you can also buy it direct on the Ion8 website.

Disclosure: I bought the Ion8 Luma Flask with my own money and this review reflects my honest opinions. However, this post contains affiliate links, which means I may earn a small commission if you choose to make a purchase through them, at no extra cost to you.