What is the Best Stanley Tumbler? (Quencher vs IceFlow vs ProTour)

Which Stanley is the Best? (Quencher vs IceFlow vs ProTour)

2/11/2025

Which Stanley Tumbler is the Best?

(10 minute read)

Which Stanley is the Best Bottle?

Stanley just released their Protour lid, but is it good and how does it compared to Stanley's other tumblers, the Quencher and Iceflow?

This post will help you find the best bottle for you so you don't waste your hard-earned money and you can make an informed decision.

We'll look at the main differences between Stanley's Quencher, IceFlow, and ProTour bottles, including which ones are:

leak-proof
easier to clean
have better insulation
easier to carry
more durable
and whether the lids are interchangeable

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Video: Which Stanley is the Best?

We also cover this in a YouTube video if you'd prefer to watch the recap that way.

The Big Picture

Quencher

Stanley Quencher

Leaks like crazy
The side-mounted handle is convenient, but bulky.
The straw is exposed on top, so the bottle takes up more space. The dial on top lets you twist between closed or chug settings. (straw must be removed to close)
Most viral

See on Amazon

IceFlow

Stanley IceFlow

Leak-proof
The top-mounted, rotating handle makes this bottle less bulky.
The flip spout is extemely difficult to remove, making cleaning this bottle more challenging.
Best insulation

See on Amazon

ProTour

Stanley ProTour

Leak-proof
Side-mounted handle is convenient, but bulky
The flip spout is removable, making it much easier to clean this bottle fully compared to the IceFlow.
Uses the same body and handle as the Quencher, so just the lid is different.

See on Amazon

Which Stanleys are Leak-Proof?

One of the most common complaints about Quencher is that it leaks like crazy, even when you have it set to closed, which has led to a lot of damaged electronics and unintended baths over the years. The good news is, and we've confirmed it here, the Protour lid is leakproof. The IceFlow bottle also uses a similiar flip-up spout, so it's leak-proof too. Just make sure you close the spout completely both both.

So if you're looking for a leak-proof bottle, avoid Quencher and go with IceFlow or ProTour.

Which Stanley is Easiest to Clean?

Most straw lids are notoriously difficult to clean because they always have some kind of seal under them that's difficult to get to without damaging the lid. Quencher avoids this problem altogether. The straw comes out easily, and you can pinch these prongs to remove the dial to clean underneath it.

Iceflow's flip-up spout is not removable to my knowledge, so you have to rely more on cleaning tablets, soap baths, and small brushes to clean it the best you can.

Protour has a removable spout and this removable seal underneath. It's a little more difficult to pop out the spout than the directions make it sound, but it can be done. You angle it at about 45 degrees like this, then pull it out. I've done it a few times and the spout has loosened up a bit, but it still fits together and works nicely. The seal is a bit of a pain to get back into place, but you can use the straw to push it through.

Overall for cleaning, Quencher is definitely the easiest, Iceflow is the worst, and Protour is somewhere in the middle, though it should get easier the more you do it.

Which Stanley Has the Best Insulation?

I did a standardized hot water test to compare the bottles relative to each other. I use wireless thermometers and measure the amount of time it takes the hot water to drop from 165 to 150 degF then average two tests for each bottle.

The results showed the Quencher and Protour are essentially the same, while Iceflow is roughly 35% better.

Insulation works similarly for both hot and cold drinks, so these rankings should also apply if you're using ice water too, which is how the vast majority of people use these bottles. I'll be doing a big ice test shortly, so follow our YouTube channel to see that video when it posts.

Overall, if insulation is your most important factor, Iceflow is the best option.

Which Stanley is Easiest to Use?

The answer to this question is more based on your own personal preferences, but here's a good rule-of-thumb.

Iceflow's top-mounted handle can be more comfortable for longer durations, so it might be a better choice for hiking.

Quencher and Protour have the same side-mounted handle, and this can be better for more casual everyday use, like around the house, at work, or when driving and doing errands.

The bottles all weigh roughly the same for a given size, so there's not a major difference there. But it's worth considering the bulkiness of the bottle too, and Iceflow's rotating handle certainly helps limit the overall size.

And for taking quick sips, the Quencher is the best choice because you don't have to flip up a spout.

Overall, each of these bottles is pretty easy to use. I wouldn't say one is really better, so think about how you'll use it most often and decide based on that.

Which Stanley is More Durable?

When it comes to durability, none of these bottles really stand out from the others. They're all made with stainless steel which will dent and scratch if you drop it, and they all have plastic parts that can break.

If durability is your most important factor, consider getting a bottle boot or carrying pouch which doubles as a protective sleeve.

Or it honestly could be worth looking at a brand like YETI because their bottles are made with a thicker steel that can resist dents more easily. But as far as the Quencher, Iceflow, and Protour go, there's not a major difference here.

Bottle Boot

These silicone bottle boots are great at limiting scratches and dents from most drops.

See on Amazon

Carrying Pouch

Slings double as a protective sleeve. Couple them with a boot for even more protection.

See on Amazon

Are Stanley's Lids Interchangeable?

nd if you're wondering whether the lids are interchangeable, there's good news good news and bad news. The good news is that the Quencher, Iceflow, and Protour lids are all interchangeable. Just make sure you get it for the same size bottle because for example a 30oz lid won't fit with a 40oz one.

The bad news is only the Quencher and Iceflow lids seem to currently be available by themselves. The new Protour lid is not available individually yet, at least not from Stanley (though you can find similar lids from other knockoff brands).

Which is the Best Stanley Tumbler?

These three bottles play an interesting game of rock-paper-scissors. Quencher is easier to clean and is popular, but it leaks. IceFlow doesn't leak and is better for hikes, but it's more difficult to clean. ProTour is easier to clean than IceFlow but not Quencher.

This is one scenario where it's hard to pick a best bottle because each one has its own strengths and weaknesses, and each person has his or her own priorities. But for my money, ProTour seems to be the best all-around option because it solves two of the most glaring issues of the Quencher leaking and the IceFlow being difficult to clean.

For those reasons, I'd choose ProTour over Quencher or IceFlow.

How to Buy a Stanley Tumbler

If you're in the market, here are links to each bottle. Big "thank you" if you use one to buy! We may earn a small commission at no additional cost to you, and it really helps our channel.