If you’re looking for a bottle that’s virtually indestructible, and want the best insulation modern technology will allow, then you need to check out some of these S’well bottles.
Built with aircraft grade steel they’ll keep drinks cold for up to 24 hours and hot for 12.
This is crazy.
It pretty much covers the entire day, so it doesn’t matter when you want your drink, it’ll be piping hot and ready.
Another great thing about S’well is just how much they care, about their products, their customers and their impact on the environment.
All their bottles are backed by a one-year Satisfaction Guarantee and they also support UNICEF and have helped in the planting of more than half a million trees.
I’ve compared S’wells 7 most popular flasks to see how they differ and which one is the best.
If you want a highly effective thermos flask that’s safe and has a positive effect on the environment then check these guys out…
**The Links below will bring you to Amazon.com**
Whether it’s for your work time coffee or so your smoothie’s nice and cool when you get to yoga this will do the job
This is S’wells classic, original bottle, and it’s the main reason why the company has gained the reputation that it has today.
This 17 ouncer is the perfect size if you’re looking for a bottle to use throughout the day.
If you just want something that works well, isn’t too fancy and isn’t too pricey either, this is the one for you.
Some other sweet features
Sleek and stylish, with a smooth tapered neck, this is a real looker.
And it doesn’t just look good it performs well too.
What I liked about it
Sophisticated, classy and likes to look good.
This has all the high-tech features and high functionality of the bottles that made S’well famous.
Mixed in with that is the good-looking design and that stunning finish.
If you want the best of heat retention technology mixed with good looks and style, then this will be right up your street.
Some other sweet features
This is another of S’well’s classics, and it definitely takes the win for being the most ‘cheap and cheerful’ on my list.
It works like a charm, is an incredible insulator, looks good and doesn’t cost nearly as much as some of the other models that are out there.
If you’re looking for a bargain, then you’ve found one right here.
Seriously, getting insulating flasks for this kind of price normally just doesn’t happen.
Some other sweet features
This is the Goliath of thermos flasks.
It’s big, badass and looks cool too.
Perfect if you’re looking for something to hold more than just a cup of coffee.
If you want something to share with the entire family and don’t want to worry about it running out, this is just fantastic.
Whether it’s so you can all share hot chocolate at a football game or you just want to have smoothies for everybody when you’re at the beach, this has got you covered.
Some other sweet features
It’s the classic swell bottle with a pop-up cap so you can take a quick and easy sip without having to unscrew it.
It looks cool, has great insulating properties and keeps your drink nice and cold.
On the go, sporty types. It’s a solid as hell, made to last and won’t be breaking on you any time soon.
Some other sweet features
Unlike most tumblers, The marble finish to this just feels so sexy.
Your standard teacup, redesigned, upgraded and improved.
Tea and coffee lovers assemble!
If you don’t like rushing your daily cuppa and want to be able to sit back, relax and take your time, this is just right for you.
The perfect mix of functionality and style, if you’re a tea lover, you’ll love this.
Some other sweet features
There are four main things to look out for.
It’s insulating properties, cost, style, and sweat-free design.
Number one, you want an insulating bottle that insulates. The top of the market bottles will be able to keep cold drinks cold for up to 24 hours and hot drinks hot for 12.

credit: swellbottle.com
You also don’t want to get ripped off. You should be able to get a decent one for between 25 and 65 bucks, don’t be paying any more than that.
Of course, you want a bottle that looks good and suits your style. Luckily there are literally hundreds to choose from so you’re bound to found one that suits you.
Finally, a sweat-free design is important. This means that condensation won’t form on the outside of the bottle, so you won’t get a damp bag and you won’t make rings on the table.
The effectiveness of some of these bottles, at insulating and maintaining temperature, is right on the edge of what’s possible with technology today.
This is achieved through a double wall construction that traps a layer of air between two layers of 18/8 stainless steel. This air acts as a fantastic insulator and is what makes keeping a drink cold for 24 hours achievable.
Most will keep your drinks cold for up to 24 hours and hot for up to 12.
Whatever size you’re looking for, they’ll have the right one for you
Anything from a tiny, teacup size 10oz cup, to a massive 62oz family, sized flask, they’ve got it all.

credit: swellbottle.com
It’s important to get the size right.
Consider how much you drink throughout the day and how important compactness and weight are to you. Balance these and make your pick.
All S’well bottles are incredibly safe. They’re manufactured in sterile clean factories and are free from nasty chemicals like BPA.
All S’well bottles are completely free from BPA, a chemical which is commonly found in plastic water bottles.
BPA is infamous for causing hormone problems and as such more and more people are starting to use reusable bottles like these ones.
Unfortunately, S’well bottles are not machine washable but luckily they’re super easy to clean by hand.
Just give them a scrub down with some hot soapy water and then rinse them off with a bit of cold water and you’ll be good to go.
Built out of high-grade 18/8 stainless steel, these are puncture and rust proof.
They’re built to last and even if you threw one off a cliff it would probably be ok.

credit: swellbottle.com
All of S’wells bottles have a 1 year satisfaction guarantee that comes with them. Not only does this give you a bit of peace of mind it also just shows how much faith they have in their own products.
There colors and designs are constantly updated so there’s always a new fresh look to choose.
You can also get them personally engraved or even engrave them yourself if you go to a professional.
The designs are constantly updated by a team of handpicked designers.

credit: swellbottle.com
The majority of models have about 20 unique designs to choose from and they all look super sleek and swish.
The main difference between these two is simply the cost. S’well bottles are much cheaper.

credit: amazon.com
With S’well you’ll save at least 20 or 30 bucks and the only real difference is that Hydros have wider mouth openings which are handy for if you’re using a third party water filter.
Yetis are machine washable while Swells you have to wash by hand.
This is a great feature but in every other field, S’well knocks Yeti out of the park.

credit: amazon.com
It’s cheaper, looks better, insulates drinks more effectively and is definitely just an all-around better flask.
I really wouldn’t recommend buying a Corkcicle flask.

credit: amazon.com
There are lots of reviews by people saying they don’t insulate their drinks that well and they’re pretty pricey too.
The top two sellers have to be Mira and S’well.
They’re both incredibly dedicated to constantly improving and making the best, most effective designs possible.
As well as this they seem to always put their customers first and have a great history of dealing with any customer problems.
While S’well bottles insulate drinks better and look cooler too, the price of some of Mira’s bottles is pretty mad.
If you’re on a super tight budget and want the cheapest ones out there check out Mira. They may not maintain the temperature of your drink as well but when they’re that cheap you really can’t complain.
Simple Modern is another example of a company that I’m not too much of a fan of.

credit: amazon.com
Their bottles are ok, but there are lots of reports of them breaking easily or having manufacturing defects and when you’re paying that much for a bottle that’s really not alright.
If none of the S’well ones catch your fancy though, I’d suggest checking out another article I wrote where I compared all the best S’well alternatives and some of the ones in there are really cool – click here to check it out
While all S’well bottles are designed in the United States, the manufacturing process takes place in responsibly run and ethically managed Chinese factories.
This means they’re able to keep their prices down while still keeping the quality of the bottles so high.
This can vary a lot depending on which model you go for so it’s definitely worth checking each individual one.
However, what makes S’well so great is how much they value maintaining the best insulating properties possible in every bottle they produce, so most should keep your drinks hot for up to 12 hours.
They sure will!
The only one of these guys who won’t fit into a standard cup holder is the Insulated Stainless Steel Roamer 40oz and 64oz.
These are just too huge but all the others will fit in there easy as pie.
S’well bottles are completely safe to put into the fridge, but there’s absolutely no reason to whatsoever.
This is because of how well insulated the bottles are. Not only do they not let inside temperatures out they also don’t let outside temperatures in, so your drink won’t get any colder.
Instead, put your drink in a normal cup, whack that in the fridge and then when you’re ready to go, you pour it into your flask.
Unfortunately no they can’t. As dishwashers use such hot water it can damage the seals around these bottles, ruining their insulating abilities.
Luckily they’re super easy to wash by hand. Just give them a rub with soapy hot water and then rinse them off with some cold and you’ll be ready to go.
Most airlines only allow you to take bottles that are 100ml or smaller onto their planes.
Unfortunately, this means that all S’well bottles are too big to bring on your carry on. But there’s nothing stopping you putting it in your hold luggage so you can still have that refreshing cold beverage no matter where in the world you are.
While you can engrave a bottle yourself it’s often advised against as it can be easy to damage the insulating wall.
There is, however, a special vendor on the website Etsy called ‘Let’s Tie The Knot’ who sells custom engraved S’well bottles.
They cost a little bit more than if you buy them straight from Amazon, but the technique that the lady who runs the store uses to engrave them does give them a really nice effect.
If you buy directly from S’well website there is the option to add a monogram of up to 10 characters onto your bottle for a small extra cost.
The other option is to buy through ‘Let’s Tie The Knot’ who sell custom engraved bottles on their Etsy website.
Absolutely.
If you like your soup piping hot, there’s really no better way to ensure that it always is that by using one of these guys.
Depending on which model you choose the dimensions will vary, so it’s worth checking.
However, most of S’wells 16oz flasks tend to be around 3 x 3 x 7.75 in.
Absolutely, there’s no reason whatsoever not to.
All of these would work absolutely fine at keeping your food nice and hot but I would suggest buying one that’s designed with a wide mouth opening. This’ll just make it easier to get the food out when you’re ready to eat.
If you’re a fan of hot meals no matter where you are, these are perfect. Whether it’s bringing your lunch into work or out to the park with you, you’ll never have to go without a home cooked meal again.